Adcote 1640E December 2011 Page 1 of 2

ADCOTETM 1640E

Laminating Adhesive

Description

Adcote 1640E, a solution coating based on Mor-Ester®49006 polyester resin. It provides excellent adhesion 

to most plastic and metal surfaces, and can be used as a primer, heat seal coating, binding resin or ink 

vehicle base. This product's performance can be further enhanced by using recommended coreactants.

Typical Properties (Not a Specification)*

Weight Solids 39-41%

Viscosity 2500-5500 cps (Brookfield RVT, #4 Spindle, 20 rpm @ 75F)

Density 8.25-8.75 lb/gal

Solvent Ethyl Acetate

Recommended Diluents MEK, Toluene, Ethyl Acetate (all urethane grade)

Coreactant Coreactant F**

Mix Ratio 100 pbw Adcote 1640

3.2 pbw Coreactant F

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.

**Other coreactants are available for special uses. Consult your sales representative for further information.

Precautions

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

information. Alcohols and similar materials containing active hydrogen can react with Adcote 1640E resin, 

causing inadequate cure. Adcote 1640E resin can react or interact with other components of the structure. 

Retained solvents, slip additives, anti-block agents and contaminated solvents are some of the components 

that may cause property changes in substrates and/or Adcote 1640E resin.

General Information

The initial color and clarity of Adcote 1640E resin will remain unchanged after outdoor exposure. In addition, 

Adcote 1640E resin is resistant to dilute acid and alkali solutions. When Adcote 1640E is mixed with 

coreactant, its tensile strength and resistance to chemical plasticizers, solvents and water are noticeably 

improved, and its melting range increases. Also, with some substrates, the addition of a coreactant may 

improve adhesion.

High molecular weight polyesters that are used in solution adhesives like Adcote 1640E 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.

Adcote 1640E December 2011 Page 1 of 2 

PACKAGING AND

CONVERTING
Adcote 1640E December 2011 Page 2 of 2

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.

Directions For Use

Apply Adcote 1640E resin using any of the conventional methods, including gravure coater, reverse roll 

coater, knife and spraying. Dilution may be necessary. Apply enough wet coating to deposit 

0.15-0.25 dry mils (or approximately 2 - 6 lb/3000 sq. ft.) and completely remove the solvents.

The preferred method for bonding is to 1.) coat the more stable substrate, 2) heat so the glue line is 325F 

minimum, and 3.) bond. A heated press can be used for general purpose bonding by employing enough

pressure to ensure intimate contact between the adhesive and both surfaces, and holding this pressure until 

the glue line reaches 325° - 375F.

When using Coreactant F, use the amount shown in the Typical Properties section as a guide. The 

optimum level of coreactant should be determined experimentally for each particular end use. Coating with 

coreactant is handled in the same manner as coating without coreactant. Curing begins after solvent 

removal and continues slowly at room temperature. Approximately 7-14 days are needed to complete the 

cure at room temperature, but a post cure at elevated temperatures can reduce this time.

Pot Life

Do not mix more Adcote 1640E resin and coreactant that will be needed in 8 hours. Any mixed solution that 

is left over should be stored in tightly closed containers and used within 3 days. When reusing, we 

recommend combining the old mixed solution with the newly mixed solution at a ratio of 25% old/75% new. 

Mix thoroughly.

Safety Precautions

Adcote 1640E resin contains somewhat toxic and/or flammable solvents, and suitable handling precautions 

should be observed. Do not inhale the fumes. Avoid prolonged and repeated skin contact. Eye contact 

must be prevented. Wear synthetic gloves, face shields and aprons impermeable to these solvents 

whenever there is a possibility of skin contact. Use NIOSH approved respirators to avoid fumes.

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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.