Mor - Free L 75 - 176/CR 88 - 121 August 2011 Page 1 of 3Mor - Free L 75 - 176/CR 88 - 121 August 2011 Page 2 of 3

The original viscosity of the mixture can be reduced by preheating the application rollers to a t ypical temperature of 45 ° - 5 0  C . Higher temperatures may be required depending on the line speed , machine configura tion, and choice of substrates. The recommended application roll temperature is 45°C. For short trial runs 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 b e 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 - 176/CR 88 - 121 , 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 applicable unit and mixing device 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 rec ommend 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. Safety, Handling and Storage

 Mor - Free L 75 - 176/CR 88 - 121 can be stored for 360 days in airtight, closed, original containers in dry rooms at temperatures of 12° - 35  C . Opened containers should be used as quickly as possible.  Store in cool, dry, we ll 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 contamina ted 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 su ggestions 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 su i tability 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 paten ts in this publication should not be underst ood 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.Mor - Free L 75 - 176/CR 88 - 121 August 2011 Page 3 of 3 0 2000 4000 6000 8000 10000 12000

0.5 2.5 4.5 6.5 8.5 10.5 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 28.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 50.5 Viscosity (mPas)



### Time (minutes) 

### Potlife of Mor - Free L 75 - 176 + CR 88 - 121

@ 45 ° C [100:45]

Mor Free L 75 - 176+ CR 88 - 121

0 200 400 600 800 1000 1200 1400



### 40 ° C 45 ° C 50 ° C Viscosity [mPas] 

### Mixed Viscosity vs. Temperature of Mor - Free L 75 - 176 + CR 88 - 121

Mor - Free L75 - 176+CR 88 - 121