Mor-Free L 75-169/C-140 November 2009 Page 1 of 3 

MOR-FREETM L 75-169/C-140 

Solventless Laminating Adhesive 

Description and Features

Mor-Free L 75-169 + C-140 is a solventless, two component, polyurethane adhesive system which is applied 

at low temperature. Mor-Free L 75-169 is suitable for laminating polyester, polyethylene, and other

packaging polyolefin films, unprinted or reverse printed. Mor-Free L 75-169 may also be used for laminating

metalized film. 

 

Typical Properties*

 (Isocyanate) (Polyol)

 Mor-Free L 75-169 C-140

Solids 100% 100%

Viscosity 77°F 4700 cps 650 cps

Weight/Gallon 9.23 lb 8.16 lb

Appearance Clear, light amber Clear, light amber

Odor Low Low

Mixing Ratio 100 pbw 80 pbw

 100 pbv 90 pbv

Shelf Life** 180 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 75-169 from freezing. 

Mor-Free L 75-169 + C-140 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 75-169 + C-140 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 75-169 + C-140 is high, the laminates can generally be further processed in

as little as 6 hours, depending on the laminate construction. As always, converters should verify appropriate 

cure times for their individual application.

Application Temperature 

We recommend the application roll be set at 104°-113°F (40°-45°C) depending on machine design and 

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

required.

Mor-Free L 75-169/C-140 November 2009 Page 1 of 3 

PACKAGING AND

CONVERTING 
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 75-169, 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 25 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 75-169 and C-140 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 L 75-169 and C-140 should be kept from freezing.

FDA Status 

Mor-Free L 75-169 + C-140 conforms to the compositional requirements of Food & Drug Administration

Code of Federal Regulations, Title 21, 175.105, Adhesives. One provision of this section requires that the

food to be packaged must be separated from the adhesive by a functional barrier. 

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 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

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Mor-Free L 75-169/C-140 November 2009 Page 3 of 3 

Rohm and Haas Food and Drug Opinion 

Name: MOR-FREE L75-169 

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 11/05/2007

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.