### Product: FROTH

- PAK(TM) Sealant 200HFC Kit

Issue Date: 03/1 5/10 Isocyanate SDS pages 2

- 14 Effective Date: 03 / 1 5/10 Polyol SDS pages 15

- 29

®(TM)*Trademark of The Dow Chemical Company 1 of 30 NOTICE The Material Safety Data Sheet information for the two component 

### FROTH

- PAK(TM) Sealant 200HFC Kit is contained in two separate datasheets; one for the iso cyanate and one for the polyol. When printing or filing, please be sure to include both documents.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 2 of 30 The Dow Chemical Company encourages and expects you to read and understand the entire (M)SDS, as there is important information throughout the document. We expect you to follow the precautions identified in this document unless your use conditions would necessitate other appropri ate methods or actions. 1. Product and Company Identification Product Name Polyurethane System – Isocyanate COMPANY IDENTIFICATI ON The Dow Chemical Company 2030 Willard H. Dow Center Midland , MI 48674 USA Customer Information Number: 800 - 258 - 2436 EMERGENCY TELEPHONE NUMBER 24- Hour Emergency Contact: 989 - 636 - 4400 Local Emergency Contact: 989 - 636 - 4400
2. Hazards Identification Emergency Overview Color: Brown Physical State: Liquid. Odor: Musty 

# Material Safety Data Sheet The Dow Chemical Company

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 3 of 30 Hazards of product: WARNING! May cause eye irritation. May cause skin irritation. May cause allergic skin reaction. May cause allergic respiratory reaction. Vapor reduces oxygen available for breathing. May cause central nervous system effects. Keep upwind of spill. May cause anesthetic effects. May cause respiratory tract irritation. May cause lung injury. May react with water. Stay out of low areas. Material reacts slowly with water, releasing carbon dioxide which can cause pressure buildup and rupture of closed containers. Elevated temperatures accelerate this reaction. Toxic fumes may be released in fire situations. Contents under pressure.

OSHA Hazard Communication Standard This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200. Potential Health Effects Eye Contact: May cause moderate eye irritation. May cause slight temporary corneal injury. Skin Contact: Prolonged contact may cause skin irritation with local redness. May stain skin. Skin Absorption: Prolonged skin contact is unlikely to result in absorption of harmful amounts. Skin Sensitization: Skin contact may cause an allergic skin reaction. Animal studies have shown that skin contact with isocyanates may play a role in respiratory sensitization. Inhalation: In confined or poorly ventilated areas, vapor can easily accumulate and can cause unconsciousness and death due to displacement of oxygen. Excessive exposure may cause irritation to upper respiratory tract (nos e and throat) and lungs. May cause pulmonary edema (fluid in the lungs.) Effects may be delayed. Decreased lung function has been associated with overexposure to isocyanates. Excessive exposure may increase sensitivity to epinephrine and increase myoca rdial irritability (irregular heartbeats). May cause central nervous system effects. Symptoms of excessive exposure may be anesthetic or narcotic effects; dizziness and drowsiness may be observed. Respiratory Sensitization: May cause allergic respiratory response. MDI concentrations below the exposure guidelines may cause allergic respiratory reactions in individuals already sensitized. Asthma - like symptoms may include coughing, difficult breathing and a feeling of tightness i n the chest. Occasionally, breathing difficulties may be life threatening. Ingestion: Low toxicity if swallowed. Smal l amounts swallowed incidentally as a result of normal handling operations are not likely to cause injury; however, swallowing larger amounts may cause injury. Observations in animals include: Gastrointestinal irritation. Effects of Repeated Exposure: Tissue injury in the upper respiratory tract and lungs has been observed in laboratory animals after repeated excessive exposures to MDI/polymeric MDI aerosols. Cancer Information: Lung tumors have bee n observed in laboratory animals exposed to respirable aerosol droplets of MDI/Polymeric MDI (6 mg/m3) for their lifetime. Tumors occurred concurrently with respiratory irritation and lung injury. Current exposure guidelines are expected to protect again st these effects reported for MDI. Birth Defects/Developmental Effects: In laboratory animals, MDI/polymeric MDI did not cause birth defects; other fetal effects occurred only at high doses which were toxic to the mothe r.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 4 of 30 Based on information for component(s): 1,1,1,2 - Tetrafluoroethane. Has been toxic to the fetus in laboratory animals at doses toxic to the mother.

Component CAS # Amount Diphenylmethane Diisocyanate, isomers and homologues 9016 - 87 - 9 >= 60.0 - <= 100.0 % 4,4' - Methylenediphenyl diisocyanate 101 - 68 - 8 >= 30.0 - <= 60.0 % 1,1,1,2 - Tetrafluoroethane 811 - 97 - 2 >= 5.0 - <= 10.0 %
Note: CAS 101 - 68 - 8 is an MDI isomer that is part of CAS 9016 - 87 - 9. 4. First-aid measures Eye Contact: Immediately flush eyes with water; remove contact lenses, if present, after the first 5 minutes, then continue flushing eyes for at least 15 minutes. Obtain medical attention without delay, preferably from an ophthalmologist. Eye wash fountain should be l ocated in immediate work area. Skin Contact: Remove material from skin immediately by washing with soa p and plenty of water. Remove contaminated clothing and shoes while washing. Seek medical attention if irritation persists. Wash clothing before reuse. An MDI skin decontamination study demonstrated that cleaning very soon after exposure is important, a nd that a polyglycol - based skin cleanser or corn oil may be more effective than soap and water. Discard items which cannot be decontaminated, including leather articles such as shoes, belts and watchbands. Inhalation: Move person to fresh air. If not breathing, give artificial respiration; if by mouth to mouth use rescuer protection (pocket mask, etc). If breathing is difficult, oxygen should be administered by qualified personnel. Call a physician or transport to a medical facility. Ingestion: If swallowed, seek medical attention. Do not induce vomiting unless directed to do so by medical personnel. Notes to Physician: Maintain adequate ventilation and oxygenation of the patient. May cause respiratory sensiti zation or asthma - like symptoms. Bronchodilators, expectorants and antitussives may be of help. Treat bronchospasm with inhaled beta2 agonist and oral or parenteral corticosteroids. Respiratory symptoms, including pulmonary edema, may be delayed. Persons receiving significant exposure should be observed 24 - 48 hours for signs of respiratory distress. If you are sensitized to diisocyanates, consult your physician regarding working with other respiratory irritants or sensitizers. Exposure may increase "myo cardial irritability". Do not administer sympathomimetic drugs such as epinephrine unless absolutely necessary. Treatment of exposure should be directed at the control of symptoms and the clinical condition of the patient. Medical Conditions Aggravated by Exposure: Excessive exposure may aggravate preexisting asthma and other respiratory disorders (e.g. emphysema, bronchitis, reactive airways dysfunction syndrome). 

## 3. Composition Information

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 5 of 30 Emergency Personnel Prote ction: First Aid responders should pay attention to self - protection and use the recommended protective clothing (chemical resistant gloves, splash protection). If potential for exposure exists refer to Section 8 for specific personal protective equipment.
5. Fire Fighting Measures Extinguishing Media: Water fog or fine spray. Dry chemical fire extinguishers. Carbon dioxide fire extinguishers. Foam. Do not use direct water stream. May spread fire. Alcohol resistant foams (ATC type) are preferred. General purpose synthetic foams (including AFFF) or protein foams may function, but will be less effective.
Fire Fighting Proced ures: Keep people away. Isolate fire and deny unnecessary entry. Stay upwind. Keep out of low areas where gases (fumes) can accumulate. Water is not recommended, but may be applied in large quantities as a fine spray when other exting uishing agents are not available. Do not use direct water stream. May spread fire. Fight fire from protected location or safe distance. Consider the use of unmanned hose holders or monitor nozzles. Immediately withdraw all personnel from the area in case of rising sound from venting safety device or discoloration of the container. Move container from fire area if this is possible without hazard. Use water spray to cool fire - exposed containers and fire - affected zone unti l fire is out. Contain fire water run - off if possible. Fire water run - off, if not contained, may cause environmental damage. Review the "Accidental Release Measures" and the "Ecological Information" sections of this (M)SDS. Special Protective Equipment for Firefighters: Wear positive - pressure self - contained breathing apparatus (SCBA) and protective fire fighting clothing (includes fire fighting helmet, coat, trousers, boots, and gloves). Avoid contact with this material during fire fighting operations. If contact is likely, change to full chemical resistant fire fighting clothing with self - contained breathing apparatus. If this is not available, wear full chemical resistant clothing with self contained breathing apparatus and fight fire from a remote location. For protective equipment in post - fire or non - fire clean - up situations, refer to the relevant sections. Unusual Fire and Explosion Haza rds: Some components of this product will burn in a fire situation. Product reacts with water. Reaction may produce heat and/or gases. This reaction may be violent. Container may rupture from gas generation in a fire situati on. Blowing agent vaporizes quickly at room temperature. Violent steam generation or eruption may occur upon application of direct water stream to hot liquids. Dense smoke is produced when product burns. Hazardous Combustion Products: During a fire, smoke may contain the original material in addition to combustion products of varying composition which may be toxic and/or irritating. Combustion products may include and are not limite d to: Nitrogen oxides. Isocyanates. Hydrogen cyanide. Carbon monoxide. Carbon dioxide. Hydrogen halides. Halogenated hydrocarbons.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 6 of 30 6. Accidental Release Measures Steps to be Taken if Material is Released or Spilled: Contain spilled material if possible. Absorb with materials such as: Vermiculite. Dirt. Sand. C lay. Do NOT use absorbent materials such as: Cement powder (Note: may generate heat). Collect in suitable and properly labeled open containers. Do not place in sealed containers. Suitable containers include: Metal drums. Plastic drums. Polylined fiber pacs. Wash the spill site with large quantities of water. Attempt to neutralize by adding suitable decontaminant solution: Formulation 1: sodium carbonate 5 - 10%; liquid detergent 0.2 - 2% ; water to make up to 100%, OR Formulation 2: concentrated ammonia solution 3 - 8%; liquid detergent 0.2 - 2%; water to make up to 100%. If ammonia is used, use good ventilation to prevent vapor exposure. Contact Dow for clean - up assistance. See Section 13, Disposal Considerations, for additional information. Personal Precautions: Isolate area. Ventilate area of leak or spill. Keep personnel out of low areas. Keep upwind of spill. Keep unnecessary and unprotected personnel from entering the area. If available, use foam to smother or suppress. Refer to Section 7, Handling, for additional precautionary measures. See Section 10 for more specific inf ormation. Use appropriate safety equipment. For additional information, refer to Section 8, Exposure Controls and Personal Protection. Environmental Precau tions: Prevent from entering into soil, ditches, sewers, waterways and/or groundwater. See Section 12, Ecological Information.
7. Handling and Storage Handling General Handling: Avoid breathing vapor. Avoid contact with eyes, skin, and clothing. Avoid prolonged or repeated contact with skin. Use with adequate ventilation. Wash thoroughly after handling. Keep container tightly closed. Contents under pressure. Do not puncture or incinerate container. Containers, even those that have been emptied, can contain vapors. Do not cut, drill, grind, weld, or perform similar operations on or near empty containers. Do not enter co nfined spaces unless adequately ventilated. See Section 8, EXPOSURE CONTROLS AND PERSONAL PROTECTION. Storage Store under cover in a dry, clean, cool, well ventilated p lace away from sunlight. Do not store product contaminated with water to prevent potential hazardous reaction. Storage Period: Storage temperature: 12 Months 15 - 27 °C
8. Exposure Controls / Personal Protection Exposure Limits

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 7 of 30 Component List Type Value | 4,4' - Methylenediphenyl diisocyanate ACGIH TWA 0.005 ppm OSHA Table Z - 1 Ceiling 0.2 mg/m3 0.02 ppm | | 1,1,1,2 -Tetrafluoroethane AIHA WEEL TWA 4,240 mg/m3 1,000 ppm Personal Protection Eye/Face Protection: Use chemical goggles. Eye wash fountain should be located in immediate work area. Skin Protection: Use protective clothing chemically resistant to this material. Selection of specific items such as face shield, boots, apron, or full body suit will depend on the task. Remove contaminated clothing immediately, wash skin area with soap and water, and launder clothing befo re reuse or dispose of properly. Items which cannot be decontaminated, such as shoes, belts and watchbands, should be removed and disposed of properly. Hand protection: Use gloves chemically resistant to this material. Example s of preferred glove barrier materials include: Butyl rubber. Polyethylene. Chlorinated polyethylene. Ethyl vinyl alcohol laminate ("EVAL"). Examples of acceptable glove barrier materials include: Viton. Neoprene. Polyvinyl chloride ("PVC" or "viny l"). Nitrile/butadiene rubber ("nitrile" or "NBR"). NOTICE: The selection of a specific glove for a particular application and duration of use in a workplace should also take into account all relevant workplace factors such as, but not limited to: Othe r chemicals which may be handled, physical requirements (cut/puncture protection, dexterity, thermal protection), potential body reactions to glove materials, as well as the instructions/specifications provided by the glove supplier. Respiratory Protection: Atmospheric levels should be maintained below the exposure guideline. When atmospheric levels may exceed the exposure guideline, use an approved air- purifying respirator equipped with an organic vapor sorbent and a particle filter. For situations where the atmospheric levels may exceed the level for which an air- purifying respirator is effective, use a positive - pressure air- supplying respirator (air line or self - contained breathing apparatus). For emergency resp onse or for situations where the atmospheric level is unknown, use an approved positive - pressure self - contained breathing apparatus or positive - pressure air line with auxiliary self - contained air supply. In confined or poorly ventilated areas, use a n approved self - contained breathing apparatus or positive pressure air line with auxiliary self - contained air supply. The following should be effective types of air- purifying respirators: Organic vapor cartridge with a parti culate pre - filter. Ingestion: Use good personal hygiene. Do not consume or store food in the work area. Wash hands before smoking or eating. Engineering Controls Ventilation: Use only with adequate ven tilation. Local exhaust ventilation may be necessary for some operations. Provide general and/or local exhaust ventilation to control airborne levels

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 8 of 30 below the exposure guidelines. Exhaust systems should be designed to move the air awa y from the source of vapor/aerosol generation and people working at this point. The odor and irritancy of this material are inadequate to warn of excessive exposure. Lethal concentrations may exist in areas with poor ventilation. 9. Physical and Chemical Properties Physical State Liquid. Color Brown Odor Musty Odor Threshold No test data available Flash Point - Closed Cup Not applicable Flammability (solid, gas) Not applicable to liquids Flammable Limits In Air Lower : No test data available Upper : No test data available Autoignition Temperature No test data available Vapor Pressure 240 psi @ 23 °C Estimated. Container is under pressure. Boiling Point (760 mmHg) No test data available
. Vapor Density (air = 1) No test data available Specific Gravity (H2O = 1) 1.24 Estimated. Freezing Point No test data available Melting Point No test data available Solubility in water (by weight) insoluble, reacts, evolution of CO2 pH Not applicable Decomposition Temperature No test data available Partition coefficient, n octanol/water (log Pow) No data available for this product. See Section 12 for individual component data. Evaporation Rate (Butyl Acetate = 1) No test data available Kinematic Viscosity No test data available
10. Stability and Reactivity Stability/Instability Stable under recommended storage conditions. See Storage, Section 7. Conditions to Avoid: Exposure to elevated temperatures can cause product to decompose. Elevated temperatures can cause pressure buildup in closed containers due to the release of blowing agents. Generation of gas during decomposition can cause pressure in close d systems. Pressure build - up can be rapid. Avoid moisture. Material reacts slowly with water, releasing

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 9 of 30 carbon dioxide which can cause pressure buildup and rupture of closed containers. Elevated temperatures accelerate this reaction
. Incompatible Materials: Avoid contact with: Acids. Alcohols. Amines. Water. Ammonia. Bases. Metal compounds. Moist air. Strong oxidizers. Diisocyanates react with many materials and the rate of reaction increases with temperature as well as increased contact; these reactions can become violent. Contact is increased by stirring or if the other material mixes with the diisocyanate. Diisocyanates are not soluble in water and sink to the bottom, but react slowly at the interface. The reaction forms carbon dioxide gas and a layer of solid polyurea. Reaction with water w ill generate carbon dioxide and heat. Avoid contact with metals such as: Aluminum. Zinc. Brass. Tin. Copper. Galvanized metals. Avoid contact with absorbent mat erials such as: Moist organic absorbents. Avoid unintended contact with polyols. The reaction of polyols and isocyanates generate heat. Hazardous Polymerization Can occur. Elevated temperatures can cause hazardous polymerization. Polymerization can be catalyzed by: Strong bases. Water. Thermal Decomposition Decomposition products depend upon temperature, air supply and the presence of other materials. Gases are released during decomposition.

11 . Toxicological Information Acute Toxicity Ingestion Single dose oral LD50 has not been determined. Estimated. LD50 , Rat > 10,000 mg/kg Skin Absorption The dermal LD50 has not been determined. Estimated. LD50 , Rabbit > 2,000 mg/kg Inhalation The LC50 has not been determined. Estimated. LC50 , Aerosol , Rat > 490 mg/m3 Sensitization Skin Skin contact may cause an allergic skin reaction. Animal studies have shown that skin contact with isocyanates may play a role in respiratory sensitization. Respiratory May cause allergic respiratory response. MDI concentrations below the exposure guidelines may cause allergic respiratory reactions in individuals already sensitized. Asthma - like symptoms may include coughing, difficult breathing and a feeling of tightness in the chest. Occasionally, breathing difficulties may be life threatening. Repeated Dose Toxicity

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 10 of 30 Tissue injury in t he upper respiratory tract and lungs has been observed in laboratory animals after repeated excessive exposures to MDI/polymeric MDI aerosols. Chronic Toxicity and Carcinogenicity Lung tumors have been observed in laboratory animals exposed to respirable aerosol droplets of MDI/Polymeric MDI (6 mg/m3) for their lifetime. Tumors occurred concurrently with respiratory irritation and lung injury. Current exposure guidelines are expected to protect against these effects reported for MDI. Developmental Toxicity In laboratory animals, MDI/polymeric MDI did not cause birth defects; other fetal effects occurred only at high doses which were toxic to the mother. Based on information for component(s): 1,1,1,2 - Tetrafluoroethane. Has been toxic to the fetus in laboratory animals at doses toxic to the mother. Did not cause birth defects in laboratory animals. Reproductive Toxicity No relevant information found. Genetic Toxicology Genetic toxicity data on MDI are inconcl usive. MDI was weakly positive in some in vitro studies; other in vitro studies were negative. Animal mutagenicity studies were predominantly negative.
12 . Ecological Information

ENVIRONMENTAL FATE Data for Component: Diphenylmethane Diisocyanate, isomers and homologues Movement & Partitioning In the aquatic and terrestrial environment, movement is expected to be limited by its reaction with water forming predominantly insoluble polyureas. Persistence and Degradability In the aquatic and terrestrial environment, material reacts with water forming predominantly insoluble polyureas which appear to be stable. In the atmospheric environment, material is expected to have a short tropospheric half - life, based on calcul ations and by analogy with related diisocyanates. Data for Component: 4,4' - Methylenediphenyl diisocyanate Movement & Partitioning In the aquatic and terrestrial environment, movement is expected to be limited by its reaction with water forming predominantly insoluble polyureas. Persistence and Degradability In the aquatic and terrestrial environment, material reacts with water forming predominantly insoluble polyureas which appear to be stable. In the atmospheric environment, material is expected to have a short tropospheric half - life, based on calcul ations and by analogy with related diisocyanates.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 11 of 30 Data for Component: 1,1,1,2 -Tetrafluoroethane Movement & Partitioning Bioconcentration potential is low (BCF less than 100 or log Pow less than 3). Potential for mobility in soil is high (Koc between 50 and 150). Henry's Law Constant (H): 5.00E - 02 atm*m3/mole ; 25 °C Measured Partition coefficient, n - octanol/water (log Pow): 1.68 Estimated. Partition coefficient, soil organic carbon/water (Koc): 97 Estimated. Persistence and Degradability 1,1,1,2 - Tetrafluoroethane (HFC - 134a) has a stratospheric ozone depletion potential (ODP) of zero, relative to CFC 12 (ODP=1). Material is expected to biodegrade only very slowly (in the environment). Fails to pass OECD/EEC tests for ready biodegradability. Indirect Photodegradation wi th OH Radicals Rate Constant Atmospheric Half- life Method 6.20E - 15 cm3/s 1,700 d Estimated. OECD Biodegradation Tests: Biodegradation Exposure Time Method 4 % 28 d OECD 301D Test Theoretical Oxygen Demand: 0.47 mg/mg

ECOTOXICITY Data for Component: Diphenylmethane Diisocyanate, isomers and homologues The measured ecotoxicity is that of the hydrolyzed product, generally under conditions maximizing production of soluble species. Material is practically non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sens itive species tested). Toxicity to Soil Dwelling Organisms LC50 , Earthworm Eisenia foetida, adult , 14 d : > 1,000 mg/kg Data for Component: 4,4' - Methylenediphenyl diisocyanate The measured ecotoxicity is that of the hydrolyzed product, generally under conditions maximizing production of soluble species. Material is practicall y non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Toxicity to Soil Dwelling Organisms LC50 , Earthwo rm Eisenia foetida, adult , 14 d : > 1,000 mg/kg Data for Component: 1,1,1,2 -Tetrafluoroethane Material is practically non - tox ic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Fish Acute & Prolonged Toxicity

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 12 of 30 LC50 , rainbow trout (Oncorhynchus mykiss) , static , 96 h : 450 mg/l Aquatic Invertebrate Acute Toxicity EC50 , water flea Daphnia magna , 48 h , immobilization : 980 mg/l 13. Disposal Considerations DO NOT DUMP INTO ANY SEWERS, ON THE GROUND, OR INTO ANY BODY OF WATER. All disposal practices must be in compliance w ith all Federal, State/Provincial and local laws and regulations. Regulations may vary in different locations. Waste characterizations and compliance with applicable laws are the responsibility solely of the waste gene rator. AS YOUR SUPPLIER, WE HAVE NO CONTROL OVER THE MANAGEMENT PRACTICES OR MANUFACTURING PROCESSES OF PARTIES HANDLING OR USING THIS MATERIAL. THE INFORMATION PRESENTED HERE PERTAINS ONLY TO THE PRODUCT AS SHIPPED IN ITS INTENDED CONDITION AS DESCRIBED IN MSDS SECTION: Composition Information. FOR UNUSED & UNCONTAMINATED PRODUCT, the preferred options include sending to a licen sed, permitted: Incinerator or other thermal destruction device.

14. Transport Information DOT Non - Bulk Proper Shipping Name: COMPRESSED GAS, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 DOT Bulk Proper Shipping Name: COMPRESSED GASES, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 IMDG Proper Shipping Name: COMPRESSED GASES, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 EMS Number: F - C,S - V Marine pollutant.: No

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 13 of 30 ICAO/IATA Proper Shipping Name: COMPRESSED GAS, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 Cargo Packing Instruction: 200 Passenger Packing Instruction: 200 Additional Information Reportable quantity: 8,333 lb
– MDI This information is no t intended to convey all specific regulatory or operational requirements/information relating to this product. Additional transportation system information can be obtained through an authorized sales or customer service representative. It is the responsi bility of the transporting organization to follow all applicable laws, regulations and rules relating to the transportation of the material. 15. Regulatory Information OSHA Hazard Co mmunication Standard This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200. Superfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning and Community Righ t-to - Know Act of 1986) Sections 311 and 312 Immediate (Acute) Health Hazard Yes Delayed (Chronic) Health Hazard Yes Fire Hazard No Reactive Hazard Yes Sudden Release of Pressure Hazard Yes Superfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning and Community Right-to - Know Act of 1986) Section 313 This product contains the following substances which are subject to the reporting requirements of Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and which are listed in 40 CFR 372. Component CAS # Amount 4,4' - Methylenediphenyl diisocyanate 101 - 68 - 8 >= 30.0 - <= 60.0 % Diphenylmethane Diisocyanate, isomers and homologues 9016 - 87 - 9 >= 60.0 - <= 100.0 % Pennsylvania (Worker and Community Right-To - Know Act): Pennsylvania Hazardous Substances List and/or Pennsylvania Environmental Hazardous Substance List:

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 14 of 30 The following product components are cited in the Pennsylvania Hazardous Substance List and/or the Pennsylvania Environmental Substance List, and a re present at levels which require reporting. Component CAS # Amount 4,4' - Methylenediphenyl diisocyanate 101 - 68 - 8 >= 30.0 - <= 60.0 %
Pennsylvania (Worker and Community Right-To - Know Act): Pennsylvania Special Hazardous Substances List: To the best of our knowledge, this product does not contain chemicals at levels which require reporting under this statute. California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986) This product contains no listed substances known to the State of California to cause cancer, birth defects or other reproductive harm, at levels which would require a warning under the statute. US. Toxic Substances Control Act All components of th is product are on the TSCA Inventory or are exempt from TSCA Inventory requirements under 40 CFR 720.30 CEPA - Domestic Substances List (DSL) All substances contained in this product are listed on the Canadian Domestic Substa nces List (DSL) or are not required to be listed.

16. Other Information Recommended Uses and Restrictions Component(s) for the manufacture of urethane polymers. Revision Identification Number: 1041164 / 1001 / Issue Date 12/16/2009 / Version: 1
. 0 Most recent revision(s) are noted by the bold, double bars in left - hand margin throughout this document. Legend N/A Not available W/W Weight/Weight OEL Occupational Exposure Limit STEL Short Term Exposure Limit

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 15 of 30 TWA Time Weighted Average ACGIH American Conference of Governmental Industrial Hygienists, Inc. DOW IHG Dow Industrial Hygiene Guideline WEEL Workpl ace Environmental Exposure Level HAZ_DES Hazard Designation Action Level A value set by OSHA that is lower than the PEL which will trigger the need for

activities such as exposure monitoring and medical surveillance if exceeded. The Dow Chemical Company urges each customer or recipient of this (M)SDS to study it carefully and consult appropriate expertise, as necessary or appropriate, to become aware of and understand the data contained in this (M)SDS and any hazards associated with the product. The information herein is provided in good faith and believed to be accurate as of the effective date shown above. However, no warranty, express or implied, is given. Regulatory requirements are subject to change and may differ between various locations. It is the buyer's/user's responsibility to ensure that his activities comply with all federal, state, provincial or local laws. The i nformation presented here pertains only to the product as shipped. Since conditions for use of the product are not under the control of the manufacturer, it is the buyer's/user's duty to determine the conditions necessary for the safe use of this product. Due to the proliferation of sources for information such as manufacturer -specific (M)SDSs, we are not and cannot be responsible for (M)SDSs obtained from any source other than ourselves. If you have obtained an (M)SDS from another source or if you are not sure that the (M)SDS you have is current, please contact us for the most current version.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 16 of 30 The Dow Chemical Company encourages and expects you to read and understand the entire (M)SDS, as there is important information throughout the document. We expect you to follow the precautions identified in this document unless your use conditions would necessitate other appropri ate methods or actions. 1. Product and Company Identification Product Name Polyurethane System - Polyol COMPANY IDENTIFICATI ON The Dow Chemical Company 2030 Willard H. Dow Center Midland , MI 48674 USA Customer Information Number: 800 - 258 - 2436 EMERGENCY TELEPHONE NUMBER 24- Hour Emergency Contact: 989 - 636 - 4400 Local Emergency Contact: 989 - 636 - 4400
2. Hazards Identification Emergency Overview Color: Yellow Physical State: Liquid. Odor: Characteristic Hazards of product: CAUTION! May cause eye irritation. May be harmful if inhaled. Vapor reduces oxygen available for breathing. May cause anesthetic effects. May cause central nervous system effects; may cause respiratory tract irritation. Isolate area. Keep upwind of spill. Contents under pressure. OSHA Hazard Communication Standard This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Stan dard, 29 CFR 1910.1200. Potential Health Effects Eye Contact: May cause slight eye irritation. May cause slight temporary corneal injury. 

# Material Safety Data Sheet The Dow Chemical Company

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 17 of 30 Skin Contact: Prolonged contact may cause slight skin irritation w ith local redness. Skin Absorption: Prolonged skin contact is unlikely to result in absorption of harmful amounts. Inhalation: Prolonged excessive exposure may cause adverse effects. In confined or poorly ventilated areas, vapor can easily accumulate and can cause unconsciousness and death due to displacement of oxygen. May cause respiratory irritation and central nervous system depression. Excessive exposure may increase sensitivity to epinephrine and increase myocardial irritability (irregular heartbeats). Symptoms of excessive exposure may be anesthetic or narcotic effects; dizziness and drowsiness may be observed. Ingestion: Low toxicity if swallowed. Small amounts swallowed incidentally as a result of normal handling operations are not likely to cause injury; however, swallowing larger amounts may cause injury. Signs and symptoms of excessive exposure may include: May cause lacrimation (tears). Salivation. Convuls ions. Tremors. Increased activity (hyperactivity). Aspiration hazard: Based on physical properties, not likely to be an aspiration hazard. Effects of Repeated Exposure: Contains a component which is report ed to be a weak organophosphate - type cholinesterase inhibitor. Excessive exposure may produce organophosphate type cholinesterase inhibition. Signs and symptoms of excessive exposure may be headache, dizziness, incoordination, muscle twitching, tremors, nausea, abdominal cramps, diarrhea, sweating, pinpoint pupils, blurred vision, salivation, tearing, tightness in chest, excessive urination, convulsions. Contains component(s) which have been reported to cause effects on the following organs in animals: Heart. Birth Defects/Developmental Effects: Contains component(s) which, in laboratory animals, have been toxic to the fetus at doses nontoxic to the mother. Contains component(s) which, in laboratory animals, have bee n toxic to the fetus only at doses toxic to the mother. Reproductive Effects: In animal studies on component(s), effects on reproduction were seen only at doses that produced significant toxicity to the parent animals.
Component CAS # Amount 1,1,1,2 - Tetrafluoroethane 811 - 97 - 2 >= 10.0 - <= 30.0 % Glycerol propylene oxide polymer 25791 - 96 - 2 >= 10.0 - <= 30.0 % Polyester polyol, aromatic Not available >= 10.0 - <= 30.0 % Sucrose , propylene oxide polymer 9049 - 71 - 2 >= 10.0 - <= 30.0 % Tris(1 - chloro - 2 - propyl) phosphate 13674 - 84 - 5 >= 10.0 - <= 30.0 % 1,1,1,3,3 - Pentafluoropropane 460 - 73 - 1 >= 1.0 - <= 10.0 % Triethyl phosphate 78 - 40 - 0 >= 1.0 - <= 5.0 % Ethylene glycol 107 - 21 - 1 > 0.1 - < 1.0 % 4. First-aid measures 

## 3. Composition Information

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 18 of 30 Eye Contact: Flush eyes thoroughly with water for several minutes. Remove contact lenses after the initial 1 - 2 minutes and continue flushing for several additional minutes. If effects occur, consult a physician, preferably an ophthalmologist. Skin Contact: Wash skin with plenty of water. Inhalation: Move person to fresh air. If not breathing, give artificial respiration; if by mouth to mouth use rescuer protection (pocket mask, etc). If breathing is difficult, oxygen should be administered by qualified personnel. Call a physician or transport to a medical facility. Ingestion: Do not induce vomiting. Call a physician and/or transport to emergency facility immediately. Notes to Physician: Maintain adequate ventilation and oxygenation of the patient. This material is a cholinesterase inhibitor. Treat symptomatically. In case of severe acute poisoning, use antidote immediately after establishing an open airway and respiration. Atropine, on ly by injection, is the preferable antidote. Oximes, such as 2 - PAM/protopam, may be therapeutic if used early; however, use only in conjunction with atropine. Attempt seizure control with diazepam 5 - 10 mg (adults) intravenous over 2 - 3 minutes. Repeat e very 5 - 10 minutes as needed. Monitor for hypotension, respiratory depression, and need for intubation. Consider second agent if seizures persist after 30 mg. If seizures persist or recur administer phenobarbital 600 - 1200 mg (adults) intravenous diluted in 60 ml 0.9% saline given at 25 - 50 mg/minute. Evaluate for hypoxia, dysrhythmia, electrolyte disturbance, hypoglycemia (treat adults with dextrose 100 mg intravenous). If exposed, plasma and red blood cell cholinesterase tests may indicate significance of exposure (baseline data are useful). Exposure may increase "myocardial irritability". Do not administer sympathomimetic drugs such as epinephrine unless absolutely necessary. Treatment of exposure should be directed at the control of symptoms and the clinical condition of the patient. Emergency Personnel Protection: First Aid responders should pay attention to self - protection and use the recommended protective clothing (chemical resistan t gloves, splash protection). If potential for exposure exists refer to Section 8 for specific personal protective equipment.
5. Fire Fighting Measures Extinguishing Media: Water fog or fine spray. Dry chemical fire extinguishers. Carbon dioxide fire extinguishers. Foam. Do not use direct water stream. May spread fire. Alcohol resistant foams (ATC type) are preferred. General purpose synthetic foam s (including AFFF) or protein foams may function, but will be less effective. Fire Fighting Procedures: Keep people away. Isolate fire and deny unnecessary entry. Use water spray to cool fire exposed containers and f ire affected zone until fire is out and danger of reignition has passed. Fight fire from protected location or safe distance. Consider the use of unmanned hose holders or monitor nozzles. Immediately withdraw all personnel from the area in case of rising sound from venting safety device or discoloration of the container. Do not use direct water stream. May spread fire. Move container from fire area if this is possible without hazard. Burning liquids may be moved by flushi ng with water to protect personnel and minimize property damage. Contain fire water run - off if possible. Fire water run - off, if not contained, may cause environmental damage. Review the "Accidental Release Measures" and the "Ecological Inform ation" sections of this (M)SDS.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 19 of 30 Special Protective Equipment for Firefighters: Wear positive - pressure self - contained breathing apparatus (SCBA) and protective fire fighting clothing (includes fire figh ting helmet, coat, trousers, boots, and gloves). Avoid contact with this material during fire fighting operations. If contact is likely, change to full chemical resistant fire fighting clothing with self - contained breathing apparatus. If this is not available, wear full chemical resistant clothing with self - contained breathing apparatus and fight fire from a remote location. For protective equipment in post - fire or non - fire clean - up situations, refer to the relevant sections. Unusual Fire and Explosion Hazards: Container may rupture from gas generation in a fire situation. Blowing agent vaporizes quickly at room temperature. Violent steam generation or eruption may occur upon application of direct water stream to hot liquids. Hazardous Combustion Products: During a fire, smoke may contain the original material in addition to combustion products of varying composition which may be toxic and/or irritating. Combustion products may include and are not limited to: Carbon monoxide. Carbon dioxide. Hydrogen halides. 6. Accidental Release Measures Steps to be Taken if Material is Released or Spilled: Contain spilled material if possible. Absorb with materials such as: Dirt. Sand. Sawdust. Collect in suitable and properly labeled containers. Wash the spill site with water. See Section 13, Disposal Considerations, for additional information. Personal Precautions: Isolate area. Keep unnecessary a nd unprotected personnel from entering the area. Spilled material may cause a slipping hazard. Refer to Section 7, Handling, for additional precautionary measures. Use appropriate safety equipment. For additional information, refer to Section 8, Exposure Controls and Personal Protection. Environmental Precautions: Prevent from entering into soil, ditches, sewers, waterways and/or groundwater. See Section 12, Ecological Information.
7. Handling and Storage Handling General Handling: Avoid contact with eyes. Avoid breathing vapor. Wash thoroughly after h andling. Keep container closed. Use only with adequate ventilation. This material is hygroscopic in nature. Contents under pressure. Do not puncture or incinerate container. Do not enter confined spaces unless adequately ventilated. See Section 8, EXPOSURE CONTROLS AND PERSONAL PROTECTION. Other Precautions: Spills of these organic materials on hot fibrous insulations may lead to lowering of the autoignition temperatures p ossibly resulting in spontaneous combustion. Storage Store under cover in a dry, clean, cool, well ventilated place away from sunlight. Storage Period: Storage temperature: 15 Months 24 °C

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 20 of 30 8. Expos ure Controls / Personal Protection

Exposure Limits Component List Type Value | 1,1,1,2 -Tetrafluoroethane AIHA WEEL TWA 4,240 mg/m3 1,000 ppm | 1,1 ,1,3,3 - Pentafluoropropane AIHA WEEL TWA 1,644 mg/m3 300 ppm | | Et hylene glycol ACGIH Ceiling Aerosol. 100 mg/m3
Personal Protection Eye/Face Protection: Use safety glasses (with side shields). Skin Protection: Wear clean, body- covering clothing. Hand protection: Use gloves chemically resistant to this material when prolonged or frequently repeated contact could occur. Examples of preferred glove barrier materials include: Chlorinated polyethylene. Polyethylene. Ethyl vinyl alcohol laminate ("EVAL"). Polyvinyl alcohol ("PVA"). Styrene/butadiene rubber. Viton. Examples of acceptable glove barrier materials includ e: Butyl rubber. Natural rubber ("latex"). Polyvinyl chloride ("PVC" or "vinyl"). NOTICE: The selection of a specific glove for a particular application and duration of use in a workplace should also take into account all relevant workplace factors suc h as, but not limited to: Other chemicals which may be handled, physical requirements (cut/puncture protection, dexterity, thermal protection), potential body reactions to glove materials, as well as the instructions/specifications provided by the glove s upplier. Respiratory Protection: Respiratory protection should be worn when there is a potential to exceed the exposure limit requirements or guidelines. If there are no applicable exposure limit requirements or guideli nes, use an approved respirator. When respiratory protection is required, use an approved positive - pressure self - contained breathing apparatus or positive - pressure airline with auxiliary self - contained air supply. For emergency conditions, us e an approved positive pressure self - contained breathing apparatus. In confined or poorly ventilated areas, use an approved self - contained breathing apparatus or positive pressure air line with auxiliary self contained air supply. Ingestion: Use good personal hygiene. Do not consume or store food in the work area. Wash hands before smoking or eating.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 21 of 30 Engineering Controls Ventilation: Use engineering controls to maintain airborne level below exposure limit requirements or guidelines. If there are no applicable exposure limit requirements or guidelines, use only in enclosed systems or with local exhaust ventilation. Exhaust systems should be designed to move the air away from the source of vapor/aerosol generation and people working at this point. Lethal concentrations may exist in areas with poor ventilation. 9. Physical and Chemical Properties

P hysical State Liquid. Color Yellow Odor Characteristic Odor Threshold No test data available Flash Point - Closed Cup > 100 °C ( > 212 °F ) Estimated. Flammability (solid, gas) Not applicable to liquids Flammable Limits In Air Lower : No test data available Upper : No test data available Autoignition Temperature No test data available Vapor Pressure Not applicable Boiling Point (760 mmHg) No test data available
. Vapor Density (air = 1) No test data available Specific Gravity (H2O = 1) 1.18 Calculated Freezing Point No test data available Melting Point No test data available Solubility in water (by weight) No test data available pH Not applicable Decomposition Temperature No test data available Partition coefficient, n octanol/water (log Pow) No data available for this product. See Section 12 for individual component data. Evaporation Rate (Butyl Acetate = 1) No test data available Ki nematic Viscosity 2,240 cSt ASTM D4878
10. Stability and Reactivity Stability/Instability Stable under recommended storage conditions. See Storage, Section 7. Conditions to Avoid: Product can oxidize at elevated temperatures. Elevated temperatures can cause pressure buildup in closed containers due to the release of blowing agents. Generation of gas during decomposition can cause pressure in closed systems.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 22 of 30 Incompatible Materials: Avoid contact with oxidizing materials. Avoid contact with: Strong acids. Strong bases. Avoid unintended contact with isocyanates. The reaction of polyols and isocyanates generates heat. Hazardous Polymerization Will not occur by itself. Thermal Decomposition Decomposition products depend upon temperature, air supply and the presence of other materials. Decomposition products can include and are not limited to: Carbon dioxide. Alcohols. Ethers. Hydrocarbons. Hydrogen halides. Ketones. Polymer fragments.
11. Toxicological Information Acute Toxicity Ingestion As product. Single dose oral LD50 has not been determined. Estimated. LD50 , Rat > 2,000 mg/kg Dermal As product. The dermal LD50 has not been determined. Estimated. LD50 , Rabbit > 2,000 mg/kg Inhalation As product. The LC50 has not been determined. Serious eye damage/eye irritation May cause slight eye irritation. May cause slight temporary corneal injury. Skin corrosion/irritation Prolonged contact may cause slight skin irritation with local redness. Sensitization Skin No relevant information found. Respiratory No relevant information found. Repeated Dose Toxicity Contains a component which is reported to be a weak organophosphate - type cholinesterase inhibitor. Excessive exposure may produce organophosphate type cholinesterase inhibition. Signs and sympto ms of excessive exposure may be headache, dizziness, incoordination, muscle twitching, tremors, nausea, abdominal cramps, diarrhea, sweating, pinpoint pupils, blurred vision, salivation, tearing, tightness in chest, excessive urination, convulsions. Conta ins component(s) which have been reported to cause effects on the following organs in animals: Heart. Chronic Toxicity and Carcinogenicity No relevant information found.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 23 of 30 Developmental Toxicity Contains component(s) which, in laboratory animals, have been toxic to the fetus at doses nontoxic to the mother. Contains component(s) which, in laboratory animals, have been toxic to the fetus only at doses toxic to the mother. Reproductive Toxicity In animal studies on component(s), effects on reproduction were seen only at doses that produced significant toxicity to the parent animals. Genetic Toxicology Genetic toxicity studies on tested components were predominantly negati ve. Contains component(s) which were negative in some animal genetic toxicity studies and positive in others.

12. Ecological Information ENVIRONMENTAL FATE Data for Component: 1,1,1,2 -Tetrafluoroethane Movement & Partitioning Bioconcentration potential is l ow (BCF less than 100 or log Pow less than 3). Potential for mobility in soil is high (Koc between 50 and 150). Henry's Law Constant (H): 5.00E - 02 atm*m3/mole ; 25 °C Measured Partition coefficient, n - octanol/water (log Pow): 1.68 Estimated. Partition coefficient, soil organic carbon/water (Koc): 97 Estimated. Persistence and Degradability 1,1,1,2 - Tetrafluoroethane (HFC - 134a) has a stratospheric ozone depletion potential (ODP) of zero, relative to CFC 12 (ODP=1). M aterial is expected to biodegrade only very slowly (in the environment). Fails to pass OECD/EEC tests for ready biodegradability. Indirect Photodegradation with OH Radicals Rate Constant Atmospheric Half- life Method 6.20E - 15 cm3/s 1,700 d Estimated. OECD Biodegradation Tests: Biodegradation Exposure Time Method 4 % 28 d OECD 301D Test Theoretical Oxygen Demand: 0.47 mg/mg Data for Component: Glycerol propylene oxide p olymer Movement & Partitioning Based on information for a similar material: Bioconcentration potential is low (BCF less than 100 or log Pow less than 3).

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 24 of 30 Persistence and Degradability For this family of materials: Based on stringent OECD test guidelines, this material cannot be considered as readily biodegradable; however, these results do not necessarily mean that the material is not biodegradable under environmental conditions. Data for Component: Sucrose , propylene oxide polymer Movement & Partitioning No bioconcentration is expect ed because of the relatively high water solubility. Persistence and Degradability Based on information for a similar material: Material is inherently biodegradable (reaches > 20% biodegradation in OECD test(s) for inherent biodegradability). Data for Component: Tris(1 - chloro -2 - propyl) phosphate Movement & Partitioning Bioconcentration potential i s low (BCF < 100 or Log Pow < 3). Potential for mobility in soil is low (Koc between 500 and 2000). Henry's Law Constant (H): < 1.35E - 05 atm*m3/mole ; 25 °C Estimated. Partition coefficient, n - octanol/water (log Pow): 2.59 Measured Partition coefficient, soil organic carbon/water (Koc): 1,300 Estimated. Bioconcentration Factor (BCF): 0.8 - 4.6 ; common carp (Cyprinus carpio) ; Measured Persistence and Degradability Material is expected to biodegrade only very slowly (in the environment). Fails to pass OECD/EEC tests for ready biodegradability. Indirect Photodegradation with OH Radicals Rate Constan t Atmospheric Half- life Method 4.47E - 11 cm3/s 0.24 d Estimated. OECD Biodegradation Tests: Biodegradation Exposure Time Method 14 % 28 d OECD 301E Test Theoretical Oxygen Demand: 1.17 mg/mg Data for Component: 1,1,1,3,3 - Pentafluoropropane Movement & Partitioning Bioconcentration potential is low (BCF less than 100 or log Pow less than 3). Potential for mobility in soil is medium (Koc between 150 and 500). Henry's Law Constant (H): 6.89E - 02 atm*m3/mole ; 25 °C Estimated. Partition coefficient, n - octanol/water (log Pow): 1 .35 Measured Partition coefficient, soil organic carbon/water (Koc): 280 Estimated. Persistence and Degradability Material is expected to biodegrade only very slowly (in the environment). Fails to pass OECD/EEC tests for ready biodegradability. Indirect Photodegradation with OH Radicals

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 25 of 30

Rate Constant Atmospheric Half- life Method 2.97E - 14 cm3/s 360 d Estimated. OECD Biodegradation Tests: Biodegradation Exposure Time Method 8 % 28 d OECD 301D Test Theoretical Oxygen Demand: 0.60 mg/mg Data for Component: Triethyl phosphate Movement & Partitioning Bioconcentration potential is low (BCF < 100 or Log Pow < 3). Potential for mobility in soil is very high (Koc between 0 and 50). Given its very low Henry's constant, vol atilization from natural bodies of water or moist soil is not expected to be an important fate process. Henry's Law Constant (H): 3.60E - 08 atm*m3/mole ; 25 °C Measured Partition coefficient, n - octanol/water (log Pow): 0.80 Measured Partition coefficient, soil organic carbon/water (Koc): 48 Estimated. Persistence and Degradability Biodegradation under aerobic laboratory conditions is below detectable limits (BOD20 or BOD28/ThOD < 2.5%). Indirect Photodegradation with OH Radicals Rate Constant Atmospheric Half- life Method 5.794E - 11 cm3/s 0.18 d Estimated. Biological oxygen demand (BOD): BOD 5 BOD 10 BOD 20 BOD 28 0 % Theoretical Oxygen Demand: 1.58 mg/mg Data for Component: Ethylene glycol Movement & Partitioning Bioconcentration potential is low (BCF < 100 or Log Pow < 3). Potential for mobility in soil is very high (Koc between 0 and 50). Given its very low Henry's constant, volatilization from natural bodies of water or moist soil is not expected to be an important fate process. Henry's Law Constant (H): 8 .05E - 09 atm*m3/mole ; 25 °C Estimated. Partition coefficient, n - octanol/water (log Pow): - 1.36 Measured Partition coefficient, soil organic carbon/water (Koc): 1 Estimated. Distribution in Environment: Mackay Level 1 Fugacity Model: Air Water. Biota Soil Sediment 2.1 % 98 % < 0.01 % < 0.01 % < 0.01 % Persistence and Degradability Material is readily biodegradable. Passes OECD test(s) for ready biodegradability. Material is ultimately biodegradable (reaches > 70% mineralization in OECD test(s) for inherent biodegradability).

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 26 of 30 Indirect Photodegradation with OH Radicals Rate Con stant Atmospheric Half- life Method 8.32E - 12 cm3/s 15 h Estimated. OECD Biodegradation Tests: Biodegradation Exposure Time Method > 94 % 28 d OECD 301F Test 90 % 1 d OECD 302B Test Theoretical Oxygen Demand: 1.29 mg/mg ECOTOXICITY Data for Component: 1,1,1,2 -Tetrafluoroethane Material is practically non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Fish Acute & Prolonged Toxicity LC50 , rainbow trout (Oncorhynchus myk iss) , static , 96 h : 450 mg/l Aquatic Invertebrate Acute Toxicity EC50 , water flea Daphnia magna , 48 h , immobilization : 980 mg/l Data for Component: Glycerol propylene oxide polymer For this family of materials: Material is practically non - toxic to aquatic organisms on an a cute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Data for Component: Sucrose , propylene oxide polymer Based on information for a similar material: M aterial is practically non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Data for Component: Tris(1 - chloro -2 - propyl) phosphate Material is slightly toxic to aquatic organisms on an acute basis (LC50/EC50 between 10 and 100 mg/L in the most sensitive species tested). Fish Acute & Prolonged Toxicity LC50 , bluegill (Lepomis macrochirus) , 96 h : 84 mg/l Aquatic Invertebrate Acute Toxicity EC50 , water flea Daphnia magna , 48 h , immobilization : 63 mg/l Aquatic Plant Toxicity EC50 , green alga Pseudokirchneriella subcapitata (formerly known as Selenastrum capricornutum) , biomass growth in hibition , 96 h : 47 mg/l EC50 , alga Scenedesmus sp. , biomass growth inhibition , 72 h : 45 mg/l Toxicity to M icro - organisms EC50 , OECD 209 Test ; activated sludge , respiration inhibition , 3 h : 784 mg/l Data for Component: 1,1,1,3,3 - Pentafluoropropane Material is practically non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested).

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 27 of 30 Fish Acute & Prolonged Toxicity LC50 , rainbow trout (Oncorhynchus mykiss) , static renewal , 96 h : > 100 mg/l Aquatic Invertebrate Acute Toxicity EC50 , water flea Daphnia ma gna , static , 48 h , immobilization : > 100 mg/l Data for Component: Triethyl phosphate Material is practically non - toxic to fish on an acute basis (LC50 > 100 mg/L). Fish Acute & Prolonged Toxicity LC50 , Japanese medaka (Oryzias latipes) , static , 48 h : > 500 mg/l Data for Component: Ethylene glycol Material is practically non - toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 mg/L in the most sensitive species tested). Fi sh Acute & Prolonged Toxicity LC50 , rainbow trout (Oncorhynchus mykiss) , static , 96 h : 18,000 - 46,000 mg/l Aquatic Invertebrate Acute Toxicity LC50 , water flea Daphnia magna , static , 48 h : 46,300 - 51,100 mg/l Aquatic Plant Toxicity EC50 , green alga Pseudokirchn eriella subcapitata (formerly known as Selenastrum capricornutum) , biomass growth inhibition , 96 h : 9,500 - 13,000 mg/l Toxicity to Micro - organisms EC50 , OECD 209 Test ; activated sludge , respiration inhibition , 30 min : 225 mg/l 13. Disposal Considerations DO NOT D UMP INTO ANY SEWERS, ON THE GROUND, OR INTO ANY BODY OF WATER. All disposal practices must be in compliance with all Federal, State/Provincial and local laws and regulations. Regulations may vary in different locations
. Waste characterizations and compliance with applicable laws are the responsibility solely of the waste generator. AS YOUR SUPPLIER, WE HAVE NO CONTROL OVER THE MANAGEMENT PRACTICES OR MANUFACTURING PROCESSES OF PARTI ES HANDLING OR USING THIS MATERIAL. THE INFORMATION PRESENTED HERE PERTAINS ONLY TO THE PRODUCT AS SHIPPED IN ITS INTENDED CONDITION AS DESCRIBED IN MSDS SECTION: Composition Information. FOR UNUSED & UNCONTAMINATED PR ODUCT, the preferred options include sending to a licensed, permitted: Recycler. Reclaimer. Incinerator or other thermal destruction device. For additional information, refer to: Handling & Storage Information, MSDS Section 7 Stability & Reactivity Information, MSDS Section 10 Regulatory Information, MSDS Section 15
14. Transport Information DOT Non - Bulk Proper Shipping Name: COMPRESSED GAS, N.O.S. Technical Name: F luorinated Hydrocarbons, Nitrogen

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 28 of 30 Hazard Class: 2.2 ID Number: UN1956 DOT Bulk Proper Shipping Name: COMPRESSED GASES, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 IMDG Proper Shipping Name: COMPRESSED GASES, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 EMS Number: F - C,S - V ICAO/IATA Proper Shipping Name: COMPRESSED GAS, N.O.S. Technical Name: Fluorinated Hydrocarbons, Nitrogen Hazard Class: 2.2 ID Number: UN1956 Cargo Packing Instruction: 200 Passenger Packing Instruction: 200 This information is not intended to convey all specific regulatory or operational requirements/information relating to this product. Additional transportation system information can be obtained through an authorized sales or customer service representative. It is the responsibility of the transporting organization to follow all applicable laws, regulations and rules relating to the transportation of the material. 15. Regulatory Information OSHA Hazard Communication Standard This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200. Superfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning and Community Right-to - Know Act of 1986) Sections 311 and 312 Immediate (Acute) Health Hazard Yes Delayed (Chronic) Health Hazard No Fire Hazard No Reactive Hazard No Sudden Release of Pressure Hazard Yes Superfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning and Community Right-to - Know Act of 1986) Section 313 To the best of our knowledge, this pro duct does not contain chemicals at levels which require reporting under this statute.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

- 28

®(TM)*Trademark of The Dow Chemical Company 

### 29 of 30 Pennsylvania (Worker and Community Right-To - Know Act): Pennsylvania Hazardous Substances List and/or Pennsylvania Environmental Haza rdous Substance List: To the best of our knowledge, this product does not contain chemicals at levels which require reporting under this statute. Pennsylvania (Worker and Community Right-To - Know Act): Pennsylvan ia Special Hazardous Substances List: To the best of our knowledge, this product does not contain chemicals at levels which require reporting under this statute. California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986) WARNING: This product contains a chemical(s) known to the State of California to cause cancer. Component CAS # Amount 1,4 - Dioxane 123 - 91 - 1 <= 0.016 % US. Toxic Substances Control Act All components of this product are on the TSCA Inventory or are exempt from TSCA Inventory requirements under 40 CFR 720.30 CEPA - Domestic Substances List (DSL) All substances contained in this product are listed on the Canadian Domestic Substances List (DSL) or are not required to be li sted.

16. Other Information Revision Identification Number: 1042556 / 1001 / Issue Date 03/09/2010 / Version: 1
. 0 Most recent revision(s) are noted by the bold, double bars in left - hand margin throughout this document. Legend N/A Not available W/W Weight/Weight OEL Occupational Exposure Limit STEL Short Term Exposure Limit TWA Time Weighted Average ACGIH American Conference of Governmental Industrial Hygienists, Inc. DOW IHG Dow Industrial Hygiene Guideline WEEL Workplace Environmental Exposure Level HAZ_DES Hazard Designation Action Level A value set by OSHA that is lower than the PEL which will trigger the need for

activities such as exposure monitoring and medical surveillance if exceeded.

### Product: FROTH

- PAK(TM) S ealant 200HFC Kit

I ssue Date: 03/1 5/10 Isocyanate SDS pages 2

- 1 4 Effective Date: 03 /1 5/10 Polyol SDS pages 1 5

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®(TM)*Trademark of The Dow Chemical Company 

### 30 of 30 The Dow Chemical Company urges each customer or recipient of this (M)SDS to study it carefully and cons ult appropriate expertise, as necessary or appropriate, to become aware of and understand the data contained in this (M)SDS and any hazards associated with the product. The information herein is provided in good faith and believed to be accurate as of the effective date shown above. However, no warranty, express or implied, is given. Regulatory requirements are subject to change and may differ between various locations. It is the buyer's/user's responsibility to ensure that his activities comply with all federal, state, provincial or local laws. The information presented here pertains only to the product as shipped. Since conditions for use of the product are not under the control of the manufacturer, it is the buyer's/user's duty to deter mine the conditions necessary for the safe use of this product. Due to the proliferation of sources for information such as manufacturer -specific (M)SDSs, we are not and cannot be responsible for (M)SDSs obtained from any source other than o urselves. If you have obtained an (M)SDS from another source or if you are not sure that the (M)SDS you have is current, please contact us for the most current version.