Adcote 518/T-8384 February 2010 Page 1 of 4

ADCOTETM 518/Coreactant T-8384 

Laminating Adhesive 

Description

Adcote 518 is the isocyanate terminated polyester urethane component of a two component adhesive

system which requires the use of coreactant T8384 to achieve full properties. 

Adcote 518 adhesive provides high bond strength and a high level of heat and chemical resistance.

The cure rate of laminations made with Adcote 518 adhesive is dependent on the temperature and relative

humidity of the storage or holding area.

Typical Properties*

Adcote 518 Coreactant T-8384

 Solids 60% 70%**

 Viscosity 300 cps <50 cps 

 Weight/Gallon 9.2 lb 9.0 lb

Solvent Ethyl acetate Ethyl alcohol

Diluents Urethane grade ethyl acetate

Mix Ratio 100 pbw 2.0 pbw

Shelf Life 360 days 270 days

 (unopened containers)

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

considered part of a product specification.

**T-8384 is 100% reactive. May contain small amounts of proprietary organic solvents. See MSDS for

details.

Typical Uses

Adcote 518/T-8384 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 Company sales representative for suggestions regarding the inner ply, i.e. the foil/cast

polypropylene component. 

Adcote 518/T-8384 can be used for laminations where high chemical resistance from foods and chemicals is

required. Adcote 518/T-8384 can also be used as an in-line primer for extrusion laminating and coating,

where enhanced adhesion and heat resistance is needed. Consult your Rohm and Haas Company sales

representative for suggestions. 

Mixing Instructions

Add the proper amount of T-8384 coreactant to the diluent solvent, then add this mixture to the 518

adhesive. Adding T-8384 directly to either 60% solids 518 or diluted mixes without pre-dilution of the T-8384, 

may result in a cloudy mixture. 

Adcote 518/T-8384 February 2010 Page 1 of 4

PACKAGING AND

CONVERTING 
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 (except for the minor amount contained in the 2% addition of Coreactant T-8384 to the adhesive) 

and similar materials containing active hydrogen can react with Adcote 518 adhesive causing inadequate

cure. 

Adcote 518 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 Operating Conditions 

Application Method Direct gravure

Application Cylinder 110 - 150 line

Application Solids 35 - 40% 

Dry Adhesive Weight 2.0 - 3.5 lb/ream 

Drying Web Temperature 150 - 180°F 

Laminating Temperature 150 - 220°F 

Cure Time 7 - 10 days at 70°F 

Slitting/Rewinding Time 24 - 48 hours at 70°F 

Cleaning Solvent Methyl ethyl ketone or ethyl acetate

______________________________________________________________________ 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 60124

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

Adcote 518/T-8384 February 2010 Page 2 of 4
Rohm and Haas Food and Drug Opinion 

Product Name: ADCOTE(TM) 518 

Regulation Number Complies Limitations Opinion Date 

21CFR175.105 L 1 Mar 01, 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 518/T-8384 February 2010 Page 3 of 4
Rohm and Haas Food and Drug Opinion 

Name: COREACTANT T-8384 

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 06/08/2005

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

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 518/T-8384 February 2010 Page 4 of 4