ADCOTETM 577A/577B

Laminating Adhesive

Description

Adcote 577A is the isocyanate-terminated polyester urethane component of a two-component adhesive 

system that requires the use of Coreactant Adcote 577B to achieve full properties.

Adcote 577A/577B adhesive provides high bond strength and a high level of heat and chemical resistance.

Adcote 577A/577B exhibits high initial shear strength that helps mitigate laminate defects.

The cure rate of laminations made with Adcote 577A/577B adhesive is dependent on the temperature and 

relative humidity of the storage or holding area. 

Typical Properties*

Adcote 577A Adcote 577B

Solids 70% 71%

Viscosity 2500 cps 130 cps

Weight/Gallon 9.2 lb 8.6 lb

Solvent Ethyl Acetate Ethyl Acetate

Diluents Urethane Grade Ethyl Acetate, MEK

Mix Ratio 100 pbw 6.4 pbw

Shelf Life 360 days 360 days

(unopened containers stored in cool, dry place)

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

considered part of a product specification.

Typical Uses

Adcote 577A/577B can be used in all typical laminations for laminating aluminum foil and a variety of 

polyester, polyolefin and coextruded films typically used in food, medical and industrial packaging 

applications. Adcote 577A/577B can be used in retortable structures to laminate polyester to foil or nylon to 

foil. The adhesive layer must be separated from the food product by a functional barrier. Consult your 

Rohm and Haas technical sales representative for suggestions regarding the inner ply, i.e., the foil/cast 

polypropylene component. 

Mixing Instructions

Add the proper amount of Adcote 577B coreactant to the Adcote 577A adhesive. Mix thoroughly until well 

dispersed.

Dilution Table:

% Solids Adcote 577A Adcote 577B Solvent

45 60.3 3.9 35.8

40 53.6 3.4 43.0

35 46.9 3.0 50.1

30 40.2 2.6 57.2

 Adcote 577A/577B February 2012 Page 1 of 6

PACKAGING AND

CONVERTING
Adcote 577A/577B February 2012 Page 2 of 6

Safety, Handling and Storage

 Store in cool, dry, well-ventilated area away from heat and ignition sources. Keep container tightly 

closed.

 Hot organic chemical vapors can suddenly and without warning combust when mixed with air. 

Ignition can occur at typical elevated temperature process conditions. Please evaluate such 

processes to assure safe handling conditions.

 Support and ground containers before opening, dispensing, mixing, pouring, or emptying. Open with 

non-sparking tools. If container is warm, open bung slowly to release the internal pressure.

 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 use heat, sparks, open flames, torches, or cigarettes on or near empty containers. 

Do not reuse empty container without professional cleaning.

 Refer to Material Safety Data Sheet for more information.

Alcohol and similar materials containing active hydrogen can react with Adcote 577A adhesive causing 

inadequate cure.

Adcote 577A can react or interact with other components of laminations. Retained solvents, slip additives, 

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

of the film and/or adhesive.

Recommended Application Conditions

Application Method Direct gravure

Application Cylinder 110 - 150 line

Application Solids 34-42%

Dry Adhesive Weight 1.25 - 3.5 lb/ream

Drying Web Temperature 150 - 180F

Laminating Temperature 150 - 220F

Cure Time 3 - 5 days at 70F

Slitting/Rewinding Time 4 - 8 hours at 70F

Cleaning Solvent Methyl Ethyl Ketone or Ethyl Acetate
Adcote 577A/577B February 2012 Page 3 of 6

Solids vs Viscosity 

#2 Zahn Cup @ 77F

0

5

10

15

20

25

30

35

25 30 35 40 45

% Solids 

Diluted With Ethyl Acetate

Viscosity (in Seconds)

Adcote 577A/577B
Adcote 577A/577B February 2012 Page 4 of 6

Solids vs Viscosity 

Brookfield #2 Spindle @ 100 RPM

0

20

40

60

80

100

120

140

25 30 35 40 45

% Solids

Diluted w ith Ethyl Acetate

Viscosity (in cps)

Adcote 577A/577B 

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.
Adcote 577A/577B February 2012 Page 5 of 6

Rohm and Haas Food and Drug Opinion

Name: ADCOTETM 577A 

Regulation Complies Opinion 

Date Limitations

21CFR175.105 Y 05/03/2007

21CFR177.1395 L 05/03/2007 ▪ The combination of ADCOTE(TM) 577A and Adcote 577B, when 

used in a ratio of 100:6.4 and cured for three days at room 

temperature at 1.7 pounds per ream, may be used as an adhesive 

layer in multilaminate food packaging materials with all food types 

provided that the adhesive layer is separated from food by a 2 mil 

linear low density polyethylene film (or equivalent or better barrier 

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

Cosmetic Act.

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

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

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.
Adcote 577A/577B February 2012 Page 6 of 6

Rohm and Haas Food and Drug Opinion

Name: ADCOTE TM 577B 

Regulation Complies Opinion 

Date Limitations

21CFR175.105 Y 05/03/2007

21CFR177.1395 A 05/03/2007 ▪ Adcote 577 and ADCOTE (TM) 577B, used at a ratio of 100:7, at 

1.76 lb/ream, and cured for 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 2 mil of 

LLDPE at conditions of use C through G in full compliance with the 

United States Federal Food, Drug, and Cosmetic Act.

▪ The combination of Adcote 577A and ADCOTE (TM) 577B, when 

used in a ratio of 100:6.4 and cured for three days at room 

temperature at 1.7 pounds per ream, may be used as an adhesive 

layer in multilaminate food packaging materials with all food types 

provided that the adhesive layer is separated from food by a 2 mil 

linear low density polyethylene film (or equivalent or better barrier 

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

Cosmetic Act.

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

21CFR177.1395 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.