Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008 

Print Date: 01 Dec 2011

®(TM)*Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow

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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 appropriate methods or 

actions. 

1. Product and Company Identification 

Product Name

SPECFLEX* NF 748 Polyol DA

COMPANY IDENTIFICATION

The Dow Chemical Company 

2030 Willard H. Dow Center 

Midland, MI 48674 

USA 

Customer Information Number: 800-258-2436

SDSQuestion@dow.com

EMERGENCY TELEPHONE NUMBER

24-Hour Emergency Contact: 989-636-4400 

Local Emergency Contact: 989-636-4400 

2. Hazards Identification 

Emergency Overview

Color: White 

Physical State: Liquid 

Odor: Characteristic 

Hazards of product:

CAUTION! May cause eye irritation. Isolate area. 

OSHA Hazard Communication Standard

This product is not a "Hazardous Chemical" as defined by the OSHA Hazard Communication 

Standard, 29 CFR 1910.1200. 

Potential Health Effects

Eye Contact: May cause slight temporary eye irritation. May cause slight temporary corneal injury. 

Skin Contact: Prolonged exposure not likely to cause significant skin irritation. 

Skin Absorption: Prolonged skin contact is unlikely to result in absorption of harmful amounts. 

Inhalation: At room temperature, exposure to vapor is minimal due to low volatility; single exposure is 

not likely to be hazardous. Vapor from heated material or mist may cause respiratory irritation. 

Material Safety Data Sheet

The Dow Chemical Company
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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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. 

Component CAS # Amount 

Polyether Polyol Blend Trade secret > 90.0 %

Water 7732-18-5 3.0 - 7.0 %

4. First-aid measures 

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 effects occur, consult a physician. 

Ingestion: If swallowed, seek medical attention. Do not induce vomiting unless directed to do so by 

medical personnel. 

Notes to Physician: No specific antidote. Treatment of exposure should be directed at the control of 

symptoms and the clinical condition of the patient. 

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 Procedures: Keep people away. Isolate fire and deny unnecessary entry. Use water 

spray to cool fire exposed containers and fire 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 flushing 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 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 Hazards: Container may rupture from gas generation in a fire situation. 

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: Nitrogen oxides. Carbon monoxide. Carbon dioxide. 

3. Composition Information
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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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 and 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. Wash thoroughly after handling. Keep container closed. 

This material is hygroscopic in nature. 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 possibly resulting in spontaneous combustion. 

Storage 

Protect from atmospheric moisture. Store in a dry place. Avoid prolonged exposure to heat and air. 

Store in the following material(s): Carbon steel. Stainless steel. Polypropylene. Polyethylene-lined 

container. Teflon. Glass-lined container. Aluminum. Plasite 3066 lined container. Plasite 3070 lined 

container. 316 stainless steel. See Section 10 for more specific information. 

Storage Period: Storage temperature: 

6 Months 15 - 35 °C 

8. Exposure Controls / Personal Protection 

Exposure Limits

None established 

Personal Protection

Eye/Face Protection: Use safety glasses. 

Skin Protection: No precautions other than clean body-covering clothing should be needed. 

Hand protection: Chemical protective gloves should not be needed when handling this 

material. Consistent with general hygienic practice for any material, skin contact should be 

minimized. 

Respiratory Protection: Atmospheric levels should be maintained below the exposure guideline. For 

most conditions, no respiratory protection should be needed; however, if material is heated or sprayed, 

use an approved air-purifying respirator. The following should be effective types of air-purifying 

respirators: Organic vapor cartridge with a particulate 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: Provide general and/or local exhaust ventilation to control airborne levels below the 

exposure guidelines. 
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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9. Physical and Chemical Properties 

Physical State Liquid 

Color White 

Odor Characteristic 

Flash Point - Closed Cup >= 100 °C (>= 212 °F) ASTM D93 

Flammable Limits In Air Lower: No test data available 

Upper: No test data available 

Autoignition Temperature No test data available

Vapor Pressure No test data available 

Boiling Point (760 mmHg) No test data available. 

Vapor Density (air = 1) No test data available

Specific Gravity (H2O = 1) 1.01 - 1.05 ASTM D891 

Freezing Point No test data available

Melting Point No test data available

Solubility in Water (by 

weight)

Partially soluble

pH No test data available

Decomposition 

Temperature

No test data available

Partition coefficient, noctanol/water (log Pow)

No data available for this product. See Section 12 for individual 

component data.

Kinematic Viscosity 1,400 - 2,600 mm2/s @ 25 °C ASTM D445 

10. Stability and Reactivity 

Stability/Instability 

Stable under recommended storage conditions. See Storage, Section 7. 

Conditions to Avoid: Product can oxidize at elevated temperatures. Generation of gas during 

decomposition can cause pressure in closed systems. 

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 can include and are not limited to: Carbon dioxide. Alcohols. Ethers. 

Hydrocarbons. Ketones. Polymer fragments. 

11. Toxicological Information 

Acute Toxicity 

Ingestion 

Single dose oral LD50 has not been determined. Estimated LD50, Rat > 2,000 mg/kg

Skin Absorption 

The dermal LD50 has not been determined. Estimated LD50, Rabbit > 2,000 mg/kg

Repeated Dose Toxicity

No relevant information found. 

Chronic Toxicity and Carcinogenicity 

No relevant information found. 

Developmental Toxicity
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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No relevant information found. 

Reproductive Toxicity

No relevant information found. 

Genetic Toxicology 

No relevant information found. 

12. Ecological Information 

ENVIRONMENTAL FATE

Data for Component: Copolymer dispersion in polyether polyol

Movement & Partitioning 

No bioconcentration of the polymeric component is expected because of its high molecular 

weight. 

Persistence and Degradability 

The polymeric component is not expected to biodegrade. 

Data for Component: Polyether polyol "C"

Movement & Partitioning 

No bioconcentration is expected because of the relatively high molecular weight (MW greater 

than 1000). 

Persistence and Degradability 

For this family of materials: Material is readily biodegradable. Passes OECD test(s) for ready 

biodegradability. 

Data for Component: Polyether polyol "F"

Movement & Partitioning 

No bioconcentration is expected because of the relatively high molecular weight (MW greater 

than 1000). 

Persistence and Degradability 

Based on information for a similar material: Material is expected to be readily biodegradable. 

ECOTOXICITY 

Data for Component: Copolymer dispersion in polyether polyol

Not expected to be acutely toxic to aquatic organisms. 

Data for Component: Polyether polyol "C"

For this family of materials: 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). 

Data for Component: Polyether polyol "F"

Based on information for a similar material: 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). 

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 with all Federal, State/Provincial and local laws and 

regulations. Regulations may vary in different locations. Waste characterizations and compliance with 
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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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 

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 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

NOT REGULATED 

DOT Bulk

NOT REGULATED 

IMDG

NOT REGULATED 

ICAO/IATA

NOT REGULATED 

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 not 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 No 

Delayed (Chronic) Health Hazard No 

Fire Hazard No 

Reactive Hazard No 

Sudden Release of Pressure Hazard No 

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 product does not contain chemicals at levels which require reporting 

under this statute. 

Pennsylvania (Worker and Community Right-To-Know Act): Pennsylvania Hazardous 

Substances List and/or Pennsylvania Environmental Hazardous 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): Pennsylvania Special Hazardous 

Substances List:
Product Name: SPECFLEX* NF 748 Polyol DA Issue Date: 12/04/2008

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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 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 listed. 

16. Other Information 

Product Literature 

Additional information on this product may be obtained by calling your sales or customer service 

contact. 

Recommended Uses and Restrictions

Component(s) for the manufacture of urethane polymers. We recommend that you use this product in 

a manner consistent with the listed use. If your intended use is not consistent with the stated use, 

please contact your sales or technical service representative. 

Revision 

Identification Number: 82984 / 1001 / Issue Date 12/04/2008 / 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. 

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 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 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.