Mor-Free 219/C-33 May 2009 Page 1 of 5 

MOR-FREETM 219/MOR-FREE C-33 

Solventless Laminating Adhesive

Description and Features

Mor-Free 219 plus Mor-Free C-33 is an aliphatic, non-yellowing, two component, solventless, polyurethane

adhesive system which is applied at room temperature. 

Mor-Free 219/C-33 is typically used for outdoor bag applications and recommended for non-food 

packaging applications requiring good UV resistance. Use of this product in food packaging applications is

not recommended. 

Typical Properties* 

(Polyester) (Isocyanate) 

 Mor-Free 219 Mor-Free C-33

Solids 100% 100% 

Viscosity, Brookfield @ 25°C 5000-8000 cps 1800 - 4000 cps

Weight/Gallon 10.2 lb 9.7 lb

Mixing Ratio 100 pbw 50 pbw

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. 

Mor-Free 219 + 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 + 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 219 plus Coreactant 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 219 + C-33 is high, the laminates can generally be further processed after 

24 – 48 hours. The chemical curing is generally completed within 7 – 10 days at 75° F (24°C). 

Application Temperature

We recommend the application roll be set at 120° - 140°F (49° - 60° C) or higher, depending on machine 

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

unit is required. 

-Free 219/C-33 May 2009 Page 1 of 5

PACKAGING AND

CONVERTING

Mor
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 trial runs we recommend preparation of no more adhesive than can be used within 15-30 minutes. A

high speed stirrer, suitable for a homogeneous mixing, should be used. However, the use of a 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 normal production. 

On processing Mor-Free 219 plus Coreactant, the safety rules for working with isocyanates must be

observed. 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. 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 or 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 219 and Mor-Free C-33 can be stored for 6 months in airtight, closed, original containers in dry 

rooms at temperatures of 70° ± 15°F. Opened containers should be used as quickly as possible. 

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 219/C-33 May 2009 Page 2 of 5 
Pot Life Curve @ 120°F

Mor-Free 219 + C-33 (100:50 pbw)

0

1000

2000

3000

4000

5000

6000

7000

8000

0 15 30 45

Time, Minutes

Viscosity, CP

S

Temperature vs. Viscosity Curve

Mor-Free 219 + C-33 (100:50 pbw)

0

500

1000

1500

2000

2500

3000

3500

100 110 120 130 140 150 160 170 180

Temperature of Mixture, °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 219/C-33 May 2009 Page 3 of 5 
Rohm and Haas Food and Drug Opinion 

Name: MOR-FREE (TM) 219 

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 05/17/2006

21CFR175.300 Y 05/17/2006

21CFR176.170 L 05/17/2006 ▪ PROVIDED THAT THE FOOD CONTACT SURFACE OF THE 

PAPER AND PAPERBOARD COMPLIES WITH THE

EXTRACTIVES LIMITATIONS IN 21CFR176.170 PARAGRAPH (C).

21CFR176.180 Y 05/17/2006

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

21CFR175.300 Resinous and polymeric coatings

21CFR176.170 Components of paper and paperboard in contact with aqueous and fatty foods

21CFR176.180 Components of paper and paperboard in contact with dry food

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 219/C-33 May 2009 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 1390A/MOR-FREE 

C-33 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.

▪ The combination of Mor-Free L75X154/Mor-Free C-33 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 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 additives/food-contact status of this product will remain 

unchanged indefinitely; therefore we recommend that you periodically verify its status 

Mor-Free 219/C-33 May 2009 Page 5 of 5