ROHM AND HAAS

ROHM AND HAAS CHEMICALS LLC

MIDWEST TECHNICAL CENTER, 2531 TECHNOLOGY DR. SUITE 301 ELGIN, IL 60124 USA 

TELEPHONE 847-649-3800 FAX 847-649-3760

The information presented herein is based upon our own research and general experience and is believed to be accurate and reliable. However, you should conduct your 

own tests to evaluate the effectiveness of the Rohm and Haas product and our suggestion under your own conditions prior to commercial use. As you can appreciate, 

since the conditions of handling, use and testing are beyond our control, we make no guarantee of results and assume no liability for direct or consequential damages 

incurred by following these suggestions. Nothing contained herein is to be construed as a recommendation for use in violation of any patents or of applicable laws or 

regulations.

Midwest Technical Center

Rohm and Haas Co. – 2531 Technology Drive Suite 301 Elgin, IL 60124 Phone: 847-649-3800 Fax: 847-649-3760

Recommended Personal Protective Equipment and Safe Handling Procedures

When Using Isocyanate containing MOR-FREE® Adhesives

Caution: Several MOR-FREE®adhesives contain isocyanates which are known skin and respiratory 

sensitizers. Every effort should be made to prevent exposure by any route by means of engineering controls. 

Personal protective equipment should be considered a last resort approach to employee protection. Once 

cured, isocyanate-containing MOR-FREE adhesives are non-hazardous.

1. Eye Protection: Wear safety glasses during routine operations. When there is the potential of a splash, 

wear chemical splash goggles and a face shield.

2. Work Clothes: Wear long pants and long-sleeved shirts. If work clothing is contacted with isocyanatecontaining materials, it should be changed immediately and properly discarded if grossly contaminated. 

If clothing can be cleaned it should be either laundered on site by employees or with help from a 

commercial laundry service whose employees have been informed about the potential hazards of the 

possible contamination. Any work clothing believed to have been contaminated should not be laundered 

at home. Procedures for handling contaminated work clothing should be developed and followed.

3. Work Shoes: Wear steel-toe safety shoes when there is the potential of foot injury.

4. Hand Protection: Nitrile gloves are recommended for protection against isocyanate-containing 

materials. Before removing contaminated gloves, water rinse them and remove them without touching the 

outer surface with unprotected fingers. Allow gloves to air dry to cure unreacted isocyanate, and discard 

contaminated gloves as non-hazardous trash. (www.bestglove.com, www.ansellpro.com)

5. Skin Cleaning: If skin is contacted with isocyanate-containing materials, immediately wash with 

polypropylene glycol, a polyglycol skin decontamination product, or corn oil. Then wash the affected 

area thoroughly with soap and water.

6. Respiratory Protection: If air monitoring has shown that air concentrations of isocyanates are greater

than 5 and less than 50 parts per billion parts of air (ppb), wear a full facepiece air-purifying respirator 

equipped with an organic vapor cartridge and N95 prefilter. If the airborne isocyanate concentration is 

above 50 ppb or is unknown, a positive-pressure full facepiece airline respirator or positive-pressure selfcontained breathing apparatus (SCBA) is required. Ensure that respirator wearers have been fit tested. 

(www.3M.com/occsafety, www.MSAnet.com)

7. Engineering Controls: Avoid generating mists and vapors by using closed systems. When mists and 

vapors are released, control then by means of enclosures and ventilation systems.

8. Ventilation: Use local exhaust ventilation for the control of airborne isocyanates, that is ventilation that 

collects vapor and mist releases at the point of their evolution and exhausts then from the workplace. A 

capture velocity of 100 fpm is required for vapors and 150 fpm for mists at the point of release. Consult 

the latest edition of Industrial Ventilation, A Manual of Recommended Practice published by the 

American Conference of Governmental Industrial Hygienists for information on the design, installation, 

use, and maintenance of exhaust systems. (www.acgih.org)

9. Other: Confine long hair and do not wear loose jewelry in the workplace.