MOR-GLOSSTM 552A

Gloss Laminating Adhesive

Description 

Mor-Gloss 552A Adhesive plus coreactant Mor-Gloss CR-40B is a two component, VOC compliant,

waterborne adhesive system designed for laminating flexible substrates such as polypropylene or polyester

to (coated) printed board or paper. Very low VOCs, moisture resistance, excellent clarity and resistance to

yellowing and ink discoloration are key advantages of these products. The coreactant must be used to

achieve full properties. 

Typical Properties* Mor-Gloss 552A Coreactant Mor-Gloss

Adhesive CR-40B

Solids 52% 40% 

Viscosity ~400 cps 50 cps

Weight/Gallon 8.8 lbs 9.2 lbs 

pH 7.0 N/A

Shelf Life 420 days 360 days

Flash Point >200 °F >200°F 

Mix Ratio 100 pbw 5.0 pbw

Mixed Pot Life with CR-40B 16-24 hours maximum

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

considered part of a product specification. 

Application Characteristics

This system may be run as received or diluted with water as desired. Do not dilute with alcohol or any

solvent containing hydroxy groups or active hydrogen compounds, as these will partly or fully block the cure

resulting in reduced adhesion, heat resistance, etc. 

It is a good practice to mix the adhesive Mor-Gloss 552A thoroughly before adding the coreactant

Mor-Gloss CR-40B. Stir vigorously enough to create a vortex without causing excessive foam. Then slowly

add the required amount of coreactant Mor-Gloss CR-40B to the adhesive vortex. Continue mixing several

minutes. 

At high machine speeds, if foam should become a problem, add 0.02% (or less) by weight AdcoteTM 7T11

defoamer. Mix defoamer well before adding. Mix well into adhesive. 

Use of mixed material older than 24 hrs. can cause appearance problems. 

Clean-up of either component or the uncured mixture can be done with either a detergent solution in water or

50/50 IPA/water.

For best results, clean up before drying or curing takes place. Dried adhesive or cured mixture with

coreactant may require the use of solvents such as MEK and/or warm caustic cleaners.

May 2004 Page 1 of 4

PACKAGING AND

CONVERTING

ADHESIVES AND SEALANTS 
MIX WELL BEFORE USING. 

Mor-Gloss 552A may be diluted with water to 40% solids for most applications. Dilution below this level may 

cause mechanical stability problems. Alcohol cannot be added directly to this system. 

Typical Uses 

This system can be used to laminate a variety of substrates including polypropylene, polyester, and (coated) 

printed board. Not intended for use on substrates for food packaging where FDA conformance is required. 

Coating Conditions 

Desired coating weight is 6-10 gm/m2 dry (approximately 4-6 dry pounds/ream). 

Optimum coating properties are achieved at ≈52% solids. If dilution is desired to lower viscosity, use water 

only. Typical viscosity as supplied is 26-28 seconds, #2 Zahn cup for Mor-Gloss 552A. 

Nip temperatures are 180-200°F for polyester and 140-160°F for polypropylene combinations at line speeds 

of up to 100 fpm. 

Performance Characteristics 

Bond values are typically >250 gm initial and 500-600 gm after 24 hours. Mor-Gloss 552A with coreactant 

Mor-Gloss CR-40B is suggested for general purpose laminations and should be evaluated by the end user 

for performance levels needed for book binding. 

Safety, Handling and Storage 

• Store in cool, dry, well ventilated area. Protect from freezing. 

• Follow good manufacturing and handling practices. 

• 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 reuse empty container without professional cleaning. 

• Refer to Material Safety Data Sheet for more information. 

______________________________________________________________________ Mor-Gloss and Adcote are registered trademarks 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 

Mor-Gloss 552A May 2004 Page 2 of 4 
Rohm and Haas Food and Drug Opinion 

Product Name: MOR-GLOSS(TM) 552A 

Regulation Number Complies Limitations Opinion Date 

21CFR176.180 N Mar 13, 2003 

Legend: 

N No, this product is not cleared.

Regulations: 

 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. 

Mor-Gloss 552A May 2004 Page 3 of 4 
Rohm and Haas Food and Drug Opinion 

Product Name: MOR-GLOSS(TM) CR-40B 

Regulation Number Complies Limitations Opinion Date 

21CFR176.180 N Mar 13, 2003 

Legend: 

N No, this product is not cleared.

Regulations: 

 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. 

Mor-Gloss 552A May 2004 Page 4 of 4