Robond L-230/CR 9-101 April 2008 Page 1 of 5

RobondTM L-230/CR 9-101 Laminating Adhesive

Description

Robond L-230 is designed for use as a two-component, VOC compliant, waterborne adhesive for

laminating flexible substrates. The CR 9-101 coreactant must be used at the recommended mix ratio to

achieve the desired adhesion and higher performance properties. 

Alcohol-free reduction, high clarity, and low foam are important advantages of the Robond L-230/CR 9-101

adhesive system. 

Typical Properties*

 Robond L-230 CR 9-101

Solids 45% 100% 

Viscosity @ 77°F or 25°C 50 cps 3000 cps 

Weight/Gallon 8.8 lb/gallon 9.8 lb/gallon or 1.17 g/cc

pH 7.7 N/A

Solvent None None 

Coreactant CR 9-101 

Mix Ratio, pbw 100 2.0 

Diluents Water

Wet Appearance Milky White Colorless to Light Yellow

Dry Appearance Clear and Transparent 

Shelf Life, 77°F (25°C) 14 months (unopened containers) 360 Days (unopened containers)

Storage Temperature 50°-100°F 50°-100°F

Freeze/Thaw Stability None. Protect from Freezing Protect from Freezing

*These items are provided for general information only. They are approximate values and are not

considered part of a product specification. 

Typical Uses

The principal uses for Robond L-230/CR 9-101 are to laminate a variety of substrates including treated

polyolefins (minimum 38 dynes/cm2), aluminum foil, nylon and treated polyesters. These laminations are 

intended for snack foods, dry food, condiment and other medium performance packaging. Other

application uses are possible, subject to performance trials and testing. 

Typical Properties

Initial bonds are typically lower than bonds reached in 24 hours. In-line corona treatment of the substrates

typically increases the initial and final bonds. Tunnel resistance is good even with relatively low bonds.

Laminations can be slit in as little as 5 minutes following lamination. 

Robond L-230/CR 9-101 may react or interact with other components of laminations. Retained volatiles,

slip additives, antiblock agents and links are some of the components that may cause property changes of

the laminated structure. If used in conjunction with high slip films (COF <0.2), it is strongly recommended 

that the user verify that potential film property changes, due to the lamination process and materials, are

acceptable for the end use performance requirements.

 Robond L-230/CR 9-101 April 2008 Page 1 of 5

PACKAGING AND

BUILDING MATERIALS 

 
Recommended Operating Conditions

Application Method Gravure 

Application Cylinder 65-79 lines per cm (166-200 lines per inch) channel-type screen, 

7.7-12.4 ml/m2 (or 5-8 BCM/inch2) cell volume gravure cylinder or 

65-79 lines per cm (165-200 lines per inch) quadrangular screen, 

7.7-12.4 ml/m2 (or 5-8 BCM/inch2) cell volume gravure cylinder 

Application Solids 40-46% 

Dry Adhesive Weight 1 to 1.5 lb/ream or 1.6 to 2.4 gsm 

Drying Web Temperature 177°F or 77°C minimum 

Glue Line Temperature 140-180°F or 60-82°C

Pot Life Time 8 hours 

Cure Time 5 days @ 70°F or 21°C 

Application 

It is recommended that Robond L-230/CR 9-101 be applied to corona treated films (38 dynes/cm2 

minimum) to give a dry coat weight of 1.0-1.5 pounds per ream or 1.6-2.4 grams per square meter. Use 

of a smoothing bar will optimize film uniformity and appearance. Optimum smoothing action is achieved

when operating the smoothing bar against the web direction. 

Mixing 

MIX WELL BEFORE USING. 

If needed, AdcoteTM 7T11 or Foamaster

 O (Cognis) may be used at levels of 0.05-0.10% on a wet/wet 

basis to control foam. See data sheet for Adcote 7T11. 

Robond L-230/CR 9-101 is usually applied as received. It may be diluted with water to 40-42% solids for 

some applications. Dilution below this level may cause mechanical stability and appearance problems on

marginally treated films. 

It is necessary that the CR 9-101 coreactant be added slowly to the Robond L-230 adhesive with 

agitation. Prior to adding the CR 9-101, use a mechanical mixer to stir the Robond L-230 with enough 

speed until a slight vortex is formed, assuring that the adhesive is drawn from the sides and bottom of the 

mixing vessel. Slowly charge the appropriate amount of coreactant at the edge of the vortex and 

continue mixing for 15 minutes. 

Cleaning 

Drain the adhesive from the cylinder, pan and reservoir and dispose in accordance with state and local 

laws. Do not allow wet parts to dry out. Immediately rinse with tap water to remove the bulk of the 

adhesive residue. Follow by cleaning all wetted parts with ethyl acetate or other suitable solvent to 

remove any further residue. Dry all wetted parts. Dried or plugged cylinders may have to be cleaned with 

solvents that are more aggressive or other cleaning methods. 

Robond L-230/CR 9-101 April 2008 Page 2 of 5
Safety, Handling and Storage 

• Store in cool, dry, well ventilated area. Protect from freezing. 

• 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. 

______________________________________________________________________ Robond 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 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 

Robond L-230/CR 9-101 April 2008 Page 3 of 5
Rohm and Haas Food and Drug Opinion

Name: ROBOND (TM) L-230 

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 05/13/2005

21CFR176.170 L 06/13/2005 ▪ PROVIDED THAT THE FOOD CONTACT SURFACE OF THE 

PAPER AND PAPERBOARD COMPLIES WITH THE

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

21CFR176.180 Y 06/13/2005

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

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. 

Robond L-230/CR 9-101 April 2008 Page 4 of 5
Rohm and Haas Food and Drug Opinion 

Name: CR 9-101 

Regulation Complies Opinion 

Date Limitations 

21CFR175.105 Y 02/17/2004

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. 

Robond L-230/CR 9-101 April 2008 Page 5 of 5