Mor-Free L 75-149/C-132-2 October 2008 Page 1 of 4

MOR-FREETM L 75-149/C-132-2 

Solventless Laminating Adhesive

Description and Features

Mor-Free L 75-149/C-132-2 is a solventless, two component, polyurethane adhesive system which is applied

at low temperature. Mor-Free L 75-149 is suitable for laminating nylon, polyester, polyethylene, and other

packaging polyolefin films, unprinted or reverse printed. 

Mor-Free L 75-149/C-132-2 is not recommended for laminating aluminum foil. 

 

Typical Properties* 

(Isocyanate) (Polyol)

Mor-Free L 75-149 Coreactant C-132-2 

Solids 100% 100% 

Viscosity77°F 2,000 cps 5000 cps

Weight/Gallon 9.5 lb 8.15 lb 

Appearance Clear, yellow Clear

Odor Practically none Practically none

Mixing Ratio 100 pbw 90 pbw 

 100 pbv 105 pbv

Shelf Life** 360 days 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. Keep Mor-Free L 75-149 from freezing. 

Mor-Free L 75-149/C-132-2 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. 

Processing

Mor-Free L 75-149/C-132-2 must be used on machines which have been specially designed for solventless

laminations. Such equipment allows the adhesive to be fed through a meter/mix/dispense device and

provides web tension controls designed for adhesives with low initial tack. 

As the reactivity of Mor-Free L 75-149/C-132-2 is high, the laminates can generally be further processed in 

as little as 8 hours, depending on the laminate construction. The chemical curing is generally completed 

within 7 days at 25°C, depending on the laminate construction. As always, converters should verify

appropriate cure times for their individual application. 

 Mor-Free L 75-149/C-132-2 October 2008 Page 1of 4 

PACKAGING AND

BUILDING MATERIALS 

 
Application Temperature

We recommend the application roll be set at 100°F (38°C), depending on machine design and line speed

desired. No preheating of the adhesive or coreactant at the meter/mix/dispense unit is required. 

A relatively slow initial increase in viscosity is due to the exothermic reaction of the adhesive immediately 

after the mixing process and the mechanical influences in the application system. 

For short trial runs the adhesive can be batch mixed. We recommend preparation of no more adhesive than

can be used within 5-10 minutes. A high speed stirrer suitable for a homogeneous mixing should be used. 

However, the use of a meter/mix/dispense device which continuously mixes the adhesive at the chosen 

ratio, controls the feeding of the application unit, and stops production automatically in case of machine

failures, is indispensable for extended trials and normal production. 

When processing Mor-Free L 75-149, the safety rules for working with isocyanates must be observed. The

adhesive contains monomeric MDI. See Material Safety Data Sheet for specific details. 

Cleaning 

The application unit should be cleaned before the adhesive becomes insoluble by progressive curing, if the

machine stops take more than 30 minutes. 

If the application unit and mixing devices are combustion proof, they may be cleaned with esters or ketones 

such as ethyl acetate and MEK. 

Several commercially available solvents are safe and effective for flushing and cleaning Mor-Free 

adhesive residues from solventless laminators and meter/mix/dispensing equipment that do not have 

combustion proof ratings. We recommend contacting either Dynaloy, Inc. (800-669-5709; 

www.dynaloy.com), or Danko Industries (630-882-6070) for cleaning solvent recommendations. Always 

consult the solvent supplier’s MSDS for safety information before use. 

Storage 

Mor-Free L 75-149/C-132-2 can be stored in airtight, closed, unmixed, original containers in dry rooms at

temperatures of 70° ± 15°F. Opened containers should be used as quickly as possible. Both Mor-Free 

L75-149 and C-132-2 should be protected from freezing. 

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, faceshield, 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 L 75-149/C-132-2 October 2008 Page 2 of 4
Pot Life @ 100 °F

Mor-Free L75-149/C-132-2 (100:90 pbw)

0

2000

4000

6000

0 10 20 30 40 50

Time ( minutes)

Viscosity (cps)

Temperature vs. Viscosity

Mor-Free L75-149/C-132-2 (100:90 pbw)

0

500

1000

80 90 100 110 120 130 140

Temperature of Mixture, °F

Viscosity ( cps)

 

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 

Address: Midwest Technical Center, 2531 Technology Drive, Suite 301, Elgin, IL 60124 

Phone: 847-649-3800

Mor-Free L 75-149/C-132-2 October 2008 Page 3 of 4
Rohm and Haas Food and Drug Opinion

Product Name: MOR-FREETM L 75-149 

Regulation Number Complies Limitations Opinion Date

21CFR175.105 Y Sep 04, 2003

Legend:

Y Yes, this product is cleared.

Regulations:

 21CFR175.105 ADHESIVES

 Name: MOR-FREE C-132-2

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 04/04/2008

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. 

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