Adcote 502S August 2009 Page 1 of 6

ADCOTETM 502S 

Industrial Lamination

Description

Two component curing laminating adhesive designed for laminating combinations of polyester, polyamide, 

polyimide, treated polypropylene and polyethylene, aluminum foil or copper.

Typical Properties*

Solids 51%

Viscosity 2500 cps@25oC

Weight/gallon 8.2 lb (0.98 g/cc)

Solvents Ethyl acetate

Coreactant Coreactant F 

(For optimum thermal and chemical resistance)

Mix Ratio 100 pbw Adcote 502S

6.5 pbw Coreactant F

 or

Coreactant Coreactant 9L10

(For optimum ultraviolet resistance)

Mix Ratio 100 pbw Adcote 502S

5.2 pbw Coreactant 9L10

Diluents Urethane grade Methyl Ethyl Ketone, Toluene, 

Ethyl Acetate

Shelf Life 360 days (Unopened containers)

*These items are provided for general information only. 

They are approximate values and are not considered part of a product specification.

Typical Uses

Adcote 502S plus Coreactant F is recommended for use in laminations requiring high degrees of bond 

strength, age stability, thermal resistance and chemical resistance. Where ultraviolet resistance is of prime 

concern, Adcote 502S plus coreactant 9L10 would be preferred.

Some typical laminations using Adcote 502S are:

Polyester Film/Polyamide Film

Polyester Film/Polyimide Film

Polyamide Film/Polyimide Film

Aluminum Foil/Polyester Film

Aluminum Foil/Polyamide Film

Aluminum Foil/Polyimide Film

Aluminum Foil/Treated polyolefin

Copper Foil/Polyester Film

Copper Foil/Polyamide Film

Copper Foil/Polyimide Film

Adcote 502S August 2009 Page 1 of 6 

PACKAGING AND

CONVERTING

ADHESIVES AND SEALANTS
Adcote 502S August 2009 Page 2 of 6

Mixing for Use

Adcote 502S should be mechanically agitated in the drum prior to catalyzing or diluting. Combine 100 

parts of Adcote 502S with 6.5 parts Coreactant F or 5.2 parts Coreactant 9L10 just prior to use. Dilute as 

desired with the urethane grade solvents and mix thoroughly. 

High molecular weight polyesters that are used in solution adhesives like Adcote 502S have a tendency 

to form a reversible structure in solution with time. This structuring is accelerated when the adhesive is 

exposed to temperature below 50o F. The structuring is reversible if heat and shear is applied to the 

adhesive. We recommend placing the container of adhesive inn in a steam cabinet, allowing venting of 

the container and heating to 110~120o F. After the adhesive reaches the proper temperature, mix the 

adhesive in the container 1~3 hours under moderate shear. Use of a disperser or “Cowles” type blade will 

shorten the time needed.

Caution must be taken because of the flammability of the solvent used in the adhesive. Please review 

MSDS for hazards associated with the adhesive.

Attempting to redisperse without heat may reduce the apparent viscosity, but not result in a 

homogeneous mix. Before using the adhesive, check to make sure that all resin has returned to a true 

solution and no gels remain.

Adhesive Application

Adcote 502S can be applied by gravure, smooth roll or reverse roll techniques. The adhesive is generally 

applied to the less porous, more stable substrate. 

Adhesive Weight

Approximately 3.2~6.4 grams of dry adhesive per square meter will generally provide excellent results in 

laminations of light gauge substrates. Higher adhesive weights may be required in laminations of heavy 

gauge substrates and/or where high degrees of thermal or chemical resistance are required.

Drying

Use sufficient temperature and air velocity to assure complete solvent removal. Oven temperatures in the 

range of 200~250oF are generally suitable. 

Laminating Combining

Laminate to the second substrate using heated pressure nip rollers at a temperature high enough to 

assure complete wetting of the secondary substrate. A minimum temperature of 170oF is recommended, 

however, temperatures approaching 350oF may be required to obtain optimum adhesive performance in 

laminations of heavy gauge substrates or where adhesion is of prime importance.

Bond immediately off the laminator is fair. Maximum thermal and chemical properties will develop within 

7~14 days. For high performance applications, post-curing at elevated temperature of 120~150oF is 

recommended.
Adcote 502S August 2009 Page 3 of 6

Alcohols and similar materials containing active hydrogen can react with Adcote 502S adhesive system 

causing inadequate cure.

Adcote 502S can react or interact with other components of laminations. Retained solvents, slip additives, 

anitblock agents, and contaminated solvents are some of the components that may cause property 

changes of the film and/or adhesive.

Safety, Handling and Storage

 Store in cool, dry, well ventilating area.

 Follow good manufacturing and handling practices.

 Wash thoroughly after handling. Wash contaminated goggles, face shield, and gloves. Professionally 

launder contaminated clothing before re-use.

 ATTENTION! Container can be hazardous when empty. Follow label warnings even after container is 

empty. Do not reuse empty container without professional cleaning.

 Refer to Material Safety Data Sheet for more information.

______________________________________________________________________ 

ADCOTE is a registered trademark of Rohm and Haas Company

These suggestions and data are based on information we believe to be reliable. They are offered in good faith, but without 

guarantee, as conditions and method of use of our products are beyond our control. We recommend that the prospective user 

determine the suitability of our materials and suggestions before adopting them on a commercial scale.

Suggestions for uses of our products or the inclusion of descriptive material from patents and the citation of specific patents in this 

publication should not be understood as recommending the use of our products in violation of any patent or as permission or license 

to use any patents of the Rohm and Haas Company.

Visit us at http://www.rohmhaas.com/adhesivesSealants ; Midwest Technology Center, 2531 Technology Drive, Suite 301, Elgin, IL 60124
Adcote 502S August 2009 Page 4 of 6

 Rohm and Haas Food and Drug Opinion

Product Name: ADCOTE(TM) 502S

Regulation Number Complies Limitations Opinion Date

21CFR175.105 Y Jul 09, 2003

Legend:

Y Yes, this product is cleared.

Regulations:

 21CFR175.105 ADHESIVES

Disclaimer:

This information relates specifically to this product. We believe this information to 

be accurate and reliable as of this date.

We recommend that our customers make their own determination on the suitability 

of this product for their particular application.

We cannot guarantee that the indirect food additives/food-contact status of this 

product will remain unchanged indefinitely; therefore we recommend that you 

periodically verify its status.

-------------------------------------------------------------------------------------------------------------------

Name: Coreactant F 

Regulation Complies Opinion 

Date Limitations

21CFR175.105 Y 02/29/2008

Legend:

L Yes, this product is cleared with limitations noted

N No, this product is not cleared

Y Yes, this product is cleared.

A Affirmed as compliant based on migration studies.

Regulations:

21CFR175.105 Adhesives

Disclaimer:

 This information relates specifically to this product. We believe this information to be accurate and 

reliable as of this date.

 We recommend that our customers make their own determination on the suitability of this product for 

their particular application.

 We cannot guarantee that the indirect food additives/food-contact status of this product will remain 

unchanged indefinitely; therefore we recommend that you periodically verify its status.

 
Adcote 502S August 2009 Page 5 of 6

Rohm and Haas Food and Drug Opinion

Name: COREACTANT 9L10 

Regulation Complies Opinion 

Date Limitations

21CFR175.105 Y 05/12/2004

21CFR177.1390 L 08/16/2005 ▪ SOLVENT MUST BE COMPLETELY EVAPORATED DURING 

DRYING AND CURING.

▪ PROVIDED THAT IT IS NO MORE THAN 14% OF THE WEIGHT 

OF THE CURED ADHESIVE.

▪ Compositional compliance with 21 CFR 177.1390 requires the use 

of another component that is listed in the same paragraph of 21 

CFR 177.1390. In other words, a component listed in ©(2)(v) may 

NOT be used with a component listed in ©(2)(vi), unless migration 

studies have affirmed the combination to be in compliance with the 

FDA regulations. This requirement for use of components in the 

same section of 21 CFR 177.1390 applies to the use of this material 

in compliance with 21 CFR 177.1395 as well.

Paragraph ©(2)(v)©

21CFR177.1390 A 02/08/2008 ▪ Adcote 76X159 and Coreactant 9L10, used at a ratio of 100:8, at 

2.9 lb/ream, and cured for 8 days at 120F and 3 days at room 

temperature, may be used as an adhesive layer in multilaminate 

food packaging materials with aqueous food types with a food 

contact layer of at least 3 mil cast polypropylene under all conditions 

of use in full compliance with the Federal Food, Drug and Cosmetic 

Act.

21CFR177.1390 A 02/08/2008 ▪ The combination of Adcote 812 and Coreactant 9L10, when used 

at a ratio of 100:7.3, at 2.74 pounds per ream (4.5 g per meter), and 

cured for five days at 115F (46C), may be used as an adhesive layer 

in multilaminate food packaging materials with aqueous and acidic 

food types provided that the adhesive layer is separated from food 

by a 2 mil (50 micron) polypropylene film (or equivalent or better 

barrier properties) in compliance with the Federal Food, Drug, and 

Cosmetic Act.

21CFR177.1390 A 02/08/2008 ▪ The combination of Adcote 812 and Coreactant 9L10, used at a 

ratio of 100:8, at a maximum of 4 g/m2 (2.4 lb/ream), cured at 49°C 

(120°F) for 10 days, and has as a food contact layer 75 micron (3 

mil) of cast polypropylene, may be used with no limitations as to 

temperature or food-types in compliance with the United States 

Federal Food, Drug, and Cosmetic Act. The combination of Adcote 

812 and Coreactant 9L10, used at a ratio of 100:8, at a maximum of 

4 g/m2 (2.4 lb/ream), cured at 49°C (120°F) for 4 days, and has a 25 

micron (1 mil) food contact layer, may be used at all temperatures 

with aqueous and acidic food types in compliance with the United 

States Federal Food, Drug, and Cosmetic Act.

21CFR177.1390 A 02/08/2008 ▪ The combination of Adcote 842 and Coreactant 9L10, when used 

in a ratio of 100:8.0 and cured for seven days at 115F (46C), may be 

used as an adhesive layer in multilaminate food packaging materials 

under high temperature, heat-sterilized (e.g., over 212F (100C)) and 

less severe conditions, with all food types provided that the adhesive 

layer is separated from food by a 3 mil (76 micron) polypropylene 

layer (or equivalent or better barrier properties) in compliance with 

the Federal Food, Drug, and Cosmetic Act.

21CFR177.1395 L 08/16/2005 ▪ In accordance with the limitations as described under 

21CFR177.1390 above.
Adcote 502S August 2009 Page 6 of 6

Legend:

L Yes, this product is cleared with limitations noted

N No, this product is not cleared

Y Yes, this product is cleared.

A Affirmed as compliant based on migration studies.

Regulations:

21CFR175.105 Adhesives

21CFR177.1390 Laminate structures for use at temperatures of 250F and above

21CFR177.1390 Laminate structures for use at temperatures of 250F and above

21CFR177.1390 Laminate structures for use at temperatures of 250F and above

21CFR177.1390 Laminate structures for use at temperatures of 250F and above

21CFR177.1390 Laminate structures for use at temperatures of 250F and above

21CFR177.1395 Laminate structures for use at temperatures between 120F and 250F

Disclaimer:

 This information relates specifically to this product. We believe this information to be accurate and 

reliable as of this date.

 We recommend that our customers make their own determination on the suitability of this product for 

their particular application.

 We cannot guarantee that the indirect food additives/food-contact status of this product will remain 

unchanged indefinitely; therefore we recommend that you periodically verify its status.