# MOR-FREETM 225/MOR-FREE C-33
Solventless Laminating Adhesive

Description Mor-Free 225/Mor-Free C-33 is a solventless, two component, polyurethane adhesive system which is applied at low temperature. This adhesive system is used for film/film retort applications. This adhesive has shown good adhesion to a wide variety of clear barrier films.

Typical Properties * (Polyester) (Isocyanate) Mor-Free 225 Mor-Free C-33
Solids 100% 100% Viscosity 77  F 3500 cps 1800 - 4000 cps Weight/Gallon 9.85 lb 9.75 lb Appearance Clear, Yellow Clear Odor -------- Practically none------- Mixing Ratio 100 pbw 100.0 pbw 100 pbv 100.0 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.

Mor-Free 225/Mor-Free C-33 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 225/Mor-Free C-33 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.

Processing Mor-Free 225/Mor-Free C-33 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.

Mor-Free 225/Mor-Free C-33 cures sufficiently for further processing in 5 - 7 days @ 25oC. Avoid hot room cure for first 48 hours. Allow 14 days cure @ 25oC before retorting.

Preheating the adhesive and coreactant is not required under normal use to lower the viscosity. The application rolls should be heated to approximately 110  - 130°F or higher depending on line speed.

When processing Mor-Free 225/Mor-Free C-33, the safety rules for working with isocyanates
must be observed.

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. 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.

Mor-Free 225/C-33 October 2010 Page 1 of 5 

# PACKAGING AND
BUILDING MATERIALSCleaning Depending on the design of the meter/mix/dispen se unit, it should be cleaned before the adhesive becomes insoluble by progressive curing, if the machine stops for more than 15 minutes. Methylene chloride can be used to flush the mixing and metering units where a non-flammable solvent is required. Consult the Material Safety Data Sheet from the methylene chloride supplier for safe handling.

If the application 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 recommend co ntacting either Dynaloy , Inc. (800-669-5709; www.dynaloy.com ) or Danko Industries (630-761-3188) for cleaning solvent recommendations. Always consult the solvent supplier’s MSD fo r safety information before use.

Safety, Handling and Storage

 Mor-Free 225 and its coreactant can be stored for 12 months in airtight, closed, original containers in dry rooms at temperatures of 70  F±15  F. Opened containers should be used as quickly as possible.

 Store in a well ventilated area away from heat and ignition sources.

 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 em pty. Follow label warnings even after container is empty. Do not reuse empty c ontainer without pr ofessional cleaning.

 Refer to Material Safety Data Sheet for more information.

Mor-Free 225/C-33 October 2010 Page 2 of 5

### Pot Life Curve @ 130°F (54.4°C) Mor-Free 225 + C-33 (100:100 pbw)

0 2000 4000 6000 8000 10000 12000 14000

0 5 10 15 20 25 30

Time, MinutesViscosity, CPS



### Temperature vs. Viscosity Curve Mor-Free 225 + C-33 (100:100 pbw)

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

90 100 110 120 130 140

Temperature of Mixture, °FViscosity, 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. T hey 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 sugges tions 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 pr oducts in violation of any patent or as permission or lic ense 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 225/C-33 October 2010 Page 3 of 5

### Rohm and Haas Food and Drug Opinion

Name: MOR-FREE (TM) 225



### Regulation Complies 

### Opinion
Date Limitations

21CFR175.105 Y 02/02/2006

21CFR177.1390 A 02/02/2006 ▪ The combination of MOR-FREE (TM) 225/Mor-Free C-33 may be used as an adhesive layer in multilaminate food packaging materialswith all food types and with no limitations as to the type of foodcontact layer used in compliance with the Federal Food, Drug, and
Cosmetic Act.

21CFR177.1395 A 02/02/2006 ▪ In accordance with the limitations as described under
21CFR177.1390 above.



### 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 21CFR177.1390 Laminate structures for use at temperatures of 250F and above
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 addi tives/food-contact status of this product will remain unchanged indefinitely; therefore we recommend that you periodically verify its status.

Mor-Free 225/C-33 October 2010 Page 4 of 5

### Rohm and Haas Food and Drug Opinion

Name: MOR-FREE (TM) C-33



### Regulation Complies 

### Opinion
Date Limitations

21CFR175.105 L 09/24/2001 ▪ FOR USE ONLY IN THE PREPARATION OF POLYURETHANE
RESINS.

21CFR177.1390 A 02/02/2006 ▪ A = AFFIRMED AS COMPLIANT BASED UPON MIGRATION
STUDIES. THE COMBINATION OF MOR-FREE 225/MOR-FREE C33 MAY BE USED AS AN ADHESIVE LAYER IN MULTILAMINATE
FOOD PACKAGING MATERIALS WITH ALL FOOD TYPES AND
WITH NO LIMITATIONS AS TO THE TYPE OF FOOD-CONTACT LAYER USED IN COMPLIANCE WITH THE FEDERAL FOOD, DRUG, AND COSMETIC ACT.

▪ A = AFFIRMED AS COMPLIANT BASED UPON MIGRATION
STUDIES. THE COMBINATION OF MOR-FREE1390A/MOR-FREE
C-33 MAY BE USED AS AN ADHESIVE LAYER IN
MULTILAMINATE FOOD PACKA GING MATERIALS WITH ALL
FOOD TYPES AND WITH NO LIMITATIONS AS TO THE TYPE OF
FOOD-CONTACT LAYER USED IN COMPLIANCE WITH THE FEDERAL FOOD, DRUG, AND COSMETIC ACT.

▪ The combination of Mor-Free L75X154/Mor-Free C-33 may be used as an adhesive layer in multilaminate food packaging materialswith all food types and with no limitations as to the type of foodcontact layer used in compliance with the Federal Food, Drug, and
Cosmetic Act.

21CFR177.1395 A 02/02/2006 ▪ In accordance with the limitations as described under
21CFR177.1390 above.

21CFR177.1680 L 09/24/2001 ▪ FOR USE ONLY IN THE PREPARATION OF POLYURETHANE
RESINS.



### 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 21CFR177.1390 Laminate structures for use at temperatures of 250F and above
21CFR177.1395 Laminate structures for use at temperatures between 120F and 250F
21CFR177.1680 Polyurethane resins



### 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 addi tives/food-contact status of this product will remain unchanged indefinitely; therefore we recommend that you periodically verify its status.

Mor-Free 225/C-33 October 2010 Page 5 of 5