Adcote L 49-158 February 2010 Page 1 of 2

ADCOTETM L 49-158 

Laminating Adhesive 

Description

Two-component curing type laminating adhesive designed for laminating combinations of polyester,

metallized polyester, nylon, polyvinyl chloride, polyethylene, polypropylene, aluminum foil, and paper. 

Typical Properties*

Total Solids 32.0 - 34.0%

Viscosity 500-1000 cps, #4 Spindle, 20 rpm, 25°C

Density 7.5 - 7.8 lb/gallon

Coreactant Coreactant F (for optimum thermal and chemical resistance)

Mix Ratio 100 pbw Adcote L 49-158

5.5 pbw Coreactant F

 or

Coreactant Coreactant 9L10 (For optimum ultraviolet resistance)

Mix Ratio 100 pbw Adcote L 49-158

4.4 pbw Coreactant 9L10 

Diluents Methyl ethyl ketone, urethane grade ethyl acetate, toluol or blends of same

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 L 49-158 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 L 49-158 plus Coreactant 9L10 would be preferred.

Some typical laminations using Adcote L 49-158 are:

- Polyester film/polyester film

- Polyester film/metallized polyester film

- Polyester film/treated polyolefin films

- Polyester film/polyvinyl chloride films

- Polyester film/aluminum foil

- Aluminum foil/treated polyolefin films

- Aluminum foil/polyvinyl chloride film

Caution

Laminations containing plasticized PVC films should be evaluated thoroughly to determine the resistance of

the adhesive to plasticizer migration.

Mixing for Use 

Adcote L 49-158 should be mechanically agitated in the drum prior to catalyzing or diluting. Combine 100 

parts of Adcote L 49-158 with 5.5 parts Coreactant F or 4.4 parts Coreactant 9L10 just prior to use. Dilute as

desired with the desired urethane grade solvents and mix thoroughly. 

Adcote L 49-158 February 2010 Page 1 of 2

PACKAGING AND

CONVERTING 
Adcote L 49-158 February 2010 Page 2 of 2

Adhesive Application

Adcote L 49-158 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 3.2–4.8 g/m2 (2-3 pounds per ream) of dry adhesive will generally provide excellent results in 

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

gauge substrates, rough or absorbent surfaces 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 93-121°C (200-250°F) 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 70°C (150°F) is recommended; 

however, temperatures approaching 176°C (350°F) 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. Slitting 4 to 8 hours after lamination is acceptable. Maximum 

thermal and chemical properties will develop within 7-14 days. For high performance applications post 

curing at elevated temperatures of 48-66°C (100-150°F) is recommended. 

High molecular weight polyesters that are used in solution adhesives like Adcote L 49-158 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.

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

Rohm and Haas Company, Midwest Techni al Center, 2531 Technology Drive, Suite 301, Elgin, IL 60124 c

Phone: 847-649-3800 Fax: 847-649-3800