ADCOTETM AL 44 

Laminating Adhesive

Description

Adcote AL 44 is the modified polyester component of a two component, curing type laminating adhesive 

designed for use in laminations requiring high degrees of optical clarity.

Coreactant 9H1H must be used to achieve full properties. It is recommended for bonding polyester film to 

vacuum metallized polyester film for solar control film applications.

Typical Properties*

Adcote AL 44 Coreactant 9H1H

Solids 40% 50%

Viscosity 2500 cps

Weight/Gallon 8.1 lbs 9.0 lbs

Mix Ratio 100 pbw AL 44 3.2 pbw 9H1H

Solvents MEK/Toluene/Acrcosolv PMA Ethyl Acetate

Diluents MEK, Toluene, or blends of same

*These items are provided for general information only. They are approximate values and are not 

considered part of a product specification.

Mixing For Use

Adcote AL 44 should be mechanically agitate in the drum prior to catalyzing or diluting. Combine 

100 parts of Adcote AL 44 with 3.2 parts of Coreactant 9H1H just prior to use. Dilute as desired with the 

desired urethane grade solvents and mix thoroughly.

High molecular weight polyesters that are used in solution adhesives like Adcote AL 44 have tendency to 

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

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

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

container and heating to 110-140°F. After the adhesive reaches the proper temperature, mix the adhesive in 

the container for 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 solvents 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 Weight

Approximately 2.0-3.5 grams of dry adhesive per square meter (1.25-2.0 lbs/ream) will generally provide 

excellent results in laminations of light gauge substrates.

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PACKAGING AND

CONVERTING

ADHESIVES AND SEALANTS
Drying

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

range of 200-250F are generally suitable

Laminating and Combining

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

complete wetting of the secondary substrate. A minimum temperature of 160F is recommended.

Maximum thermal and chemical properties will develop within 7-14 days.

Precautions

See Material Safety Data Sheet for hazardous ingredients, flammability, disposal, and related handling 

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 

Address: Midwest Technical Center, 2531 Technology Drive, Suite 301, Elgin, IL 60123

Phone: 847-649-3800

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