Mor-Free 272 September 2008 Page 1 of 4

MOR-FREETM 272 

Solventless Laminating Adhesive 

Description

Mor-Free 272 is a solvent-free, 100% solids, single component, self-curing polyurethane laminating

adhesive. It is used in flexible packaging constructions including metallized substrates. 

Typical Properties*

Appearance Clear, colorless to light straw

Solids 100%

Viscosity (Brookfield)

 at 90°C 800 cps 

 at 25°C 93,000 cps

Density 9.2 lb/gal

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. 

**Store in tightly closed container in cool, dry place. 

Mor-Free 272 may react or interact with other components of laminations. Retained volatiles (solvents or

water), slip additives, antiblock agents and inks are some of the components that may cause property

changes of the laminated structure. If Mor-Free 272 is used on high slip films (COF < 0.2) or with high slip

LDPE/LDPE laminations, then the user must verify that potential film property changes due to the lamination

process and materials are acceptable for the end use performance requirements.

Typical Uses

Some typical constructions using Mor-Free 272 are:

Polyester to aluminum foil or treated polyethylene 

 Cast polypropylene to aluminum foil 

Treated polyethylene to aluminum foil

 Paper to aluminum foil 

Other types of laminates are possible and should be tested.

-Free 272 September 2008 Page 1 of 4

PACKAGING AND

BUILDING MATERIALS 

Mor
Adhesive Application

Laminators must be equipped with a heated fountain and heated applicator rollers. Best adhesive

application is obtained when the adhesive is heated to a typical temperature of 194°F (90°C). 

The optimum amount of coating weight necessary for good bonding varies with the end use requirements. It 

is suggested that initial evaluation be carried out at a range of 0.6-1.0 lbs/ream. 

The adhesive containers need to be preheated in an oven to operating temperature before filling the

applicator system. Do not heat the sealed containers any longer than 16 hours because the adhesive may

become viscous and gel. 

Combining

Best results are obtained at combining roll temperatures of 100-150°F. Film tension has to be controlled

very carefully to eliminate tunneling or worming in the wind-up roller.

Bond Formation

This adhesive does not provide any green strength off the laminator. Bond develops in tightly wound rolls in

6-18 hours at room temperature storage. Optimum properties are obtained in 5-7 days. 

Clean-Up 

Applicator rolls can be cleaned with isopropyl or ethyl alcohol. If the adhesive has cured on the applicator 

rolls, MEK is recommended for cleaning. 

Safety, Handling and Storage 

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

closed. 

• 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-Free 272 September 2008 Page 2 of 4
Temperature vs. Viscosity Curve

Mor-Free 272 

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

104 122 140 158 176 194

Temperature, °F

Viscosity, CP

S

______________________________________________________________________ Mor-Free 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 

Mor-Free 272 September 2008 Page 3 of 4
Rohm and Haas Food and Drug Opinion 

Product Name: MOR-FREE 272 

Regulation Number Complies Limitations Opinion Date 

21CFR175.105 Y May 12, 2000 

Legend: 

Y Yes, this product is cleared. 

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. 

Mor-Free 272 September 2008 Page 4 of 4