ADCOTETM 545-80 

Laminating Adhesive

Description and Features

Adcote 545-80 is a solvent-based two-component polyurethane adhesive with high solid characteristics

excellent heat- and chemical resistance. This polyester adhesive in conjunction with various isocyanate

terminated coreactants functions as a laminating adhesive for flexible packaging and industrial applications. 

Adcote 545-80 provides optical clarity and high bond strength. 

Adcote 545-80 adhesive adheres to a wide variety of substrates including cellophane, treated polyolefins,

polyester, polyamide, aluminum foil, paper, metalized and PVDC coated materials, and the treated side of

heat-sealable coextruded films. 

Typical Uses

Adcote 545-80 with Coreactant CT is suitable for the lamination of transparent and aluminum-containing 

structures with and without sandwich printing. Principal uses are in flexible materials for food pouches,

vacuum or gas flushed luncheon meats and cheese, coffee pouches, condiment packaging, cable wrap 

laminations, liquid packaging, hygroscopic powders, chemicals and cosmetics.

Typical Properties*

Adcote 545-80 Coreactant CT**

 (OH Component) (NCO Component)

Solids 80% 70% 

Viscosity 6500 cps @ 77°F (25°C) 1400 cps @ 77°F (25°C) 

Weight/Gallon 9.1 lbs (1.10 g/cc) 9.5 lbs (1.19 g/cc) 

Solvents Methyl ethyl ketone Ethyl acetate

Mix Ratio 100 parts by weight 11.2 parts by weight 

Diluents Methyl ethyl ketone, toluene, or urethane grade ethyl acetate 

Shelf Life 360 days 360 days

*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 Rohm and Hass sales representative for

further information.

Alcohol and similar materials containing active hydrogen can react with the Adcote 545-80 and 

Coreactant CT causing inadequate cure. Adcote 545-80 with Coreactant CT could potentially interact with 

other constituents of the laminated structures. Retained solvents, printing inks, slip additives, film additives,

anti-block agents, coatings, contaminated solvents as well as the packed product are some of the 

components that may cause property changes of the film and/or adhesive. 

September 2004 Page 1 of 4

PACKAGING AND

CONVERTING

ADHESIVES AND SEALANTS 
Recommended Operating Conditions

Application Method Direct gravure

Application Cylinder 165 - 200 line (65 - 80 line per cm) 

Application Solids 35 - 50% 

Pot Life Static 6 hours approximately 

 Dynamic 12 hours approximately 

Dry Adhesive Weight 1.1 - 2.5 lbs/ream (2 - 4.5 gsm) depending on structure

Drying Web Temperature 150 - 200°F (65 - 93°C) 

Lamination Temperature 125 - 180°F (52 - 82°C) 

Cure Time 4 - 10 days at 70°F (21°C) 

Slitting/Rewinding Time 4 - 8 hours at 70°F (21°C) 

Cleaning Solvent Methyl ethyl ketone, ethyl acetate or other suitable organic solvents. 

Initial bond immediately off the laminator is good. Within 48 hours the bond strength will be sufficient for 

further processing, such as slitting and rewinding. Maximum properties of heat and chemical resistance will 

develop within 4 - 10 days. 

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 ignite 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. 

____________________________________________________________________ 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 Technical Center, 2531 Technology Drive, Suite 301, Elgin, IL 60123

Phone: 847-649-3800 Fax: 847-649-3760

Adcote 545-80/Coreactant CT September 2004 Page 2 of 4
Rohm and Haas Food and Drug Opinion 

Product Name: ADCOTE 545-80 Adhesive

Regulation Number Complies Limitations Opinion Date 

21CFR175.105 L 1 Jul 10, 2003 

21CFR175.300 L 1 Jul 10, 2003 

21CFR175.320 L 1 Jul 10, 2003 

21CFR176.170 L 1, 2 Jul 10, 2003 

21CFR176.180 L 1 Jul 10, 2003 

Legend: 

L Yes, this product is cleared with limitations as noted. 

Limitations: 

1 SOLVENT MUST BE COMPLETELY EVAPORATED DURING DRYING 

AND CURING. 

2 PROVIDED THAT THE FOOD CONTACT SURFACE OF THE PAPER 

AND PAPERBOARD COMPLIES WITH THE EXTRACTIVES 

LIMITATIONS IN 21CFR176.170 PARAGRAPH (C). 

Regulations: 

 21CFR175.105 ADHESIVES 

 21CFR175.300 RESINOUS AND POLYMERIC COATINGS 

 21CFR175.320 RESINOUS AND POLYMERIC COATINGS FOR POLYOLEFIN FILMS 

 21CFR176.170 COMPONENTS OF PAPER AND PAPERBOARD IN CONTACT WITH 

AQUEOUS AND FATTY FOODS 

 21CFR176.180 COMPONENTS OF PAPER AND PAPERBOARD IN CONTACT WITH 

DRY FOOD 

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 545-80/Coreactant CT September 2004 Page 3 of 4
Rohm and Haas Food and Drug Opinion 

Product Name: Coreactant CT

Regulation Number Complies Limitations Opinion Date 

21CFR175.105 L 1 May 12, 2000 

Legend: 

L Yes, this product is cleared with limitations as noted. 

Limitations: 

1 SOLVENT MUST BE COMPLETELY EVAPORATED DURING 

DRYING AND CURING. 

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 545-80/Coreactant CT September 2004 Page 4 of 4