Click on the link to see any of the articles below.

Hardeners, also called catalysts or activators, contain diisocyanates and organic solvents. Diisocyanates (also called isocyanates) can cause serious health effects at very low levels. Many solvents are also very toxic. Painters should know what chemicals are in the paints they are using, their health effects, and safe handling procedures to protect themselves, their co-workers, and their families.Hardeners may contain the following diisocyanates:

“Your Lungs, Your Skin, Your Life”

Body Shop Business, October 2006 – posted by permission

NIOSH Alert on Diisocyanates
“Preventing Asthma and Death from Diisocyanate Exposure”
Preventing Asthma and Death from MDI Exposure During Spray-on Truck Bed Liner and Related Applications—NIOSH Alert

DHHS (NIOSH) Publication No. 2006-149 (September 2006)
This Alert summarizes four case reports: one death and several incidents of asthma or other respiratory disease following exposure to MDI during spray-on truck bed lining operations.

A separate NIOSH Safety and Health Topic: Isocyanates page is also available.

NIOSH Pocket Guide to Chemical Hazard
provides information on physical chemical properties, toxicity, exposure limits, personal protection and respirator recommendations, exposure routes, symptoms, target organs, and cancer causing potential.

New Jersey Hazardous Substance Fact Sheet on hexamethylene diisocyanate (HDI)
Available on the New Jersey Right to Know web site. Click on the alphabetical list and locate hexamethylene diisocyanate (CAS # 822-06-0).

EPA’s Office of Air Quality Planning and Standards Hazardous Air Pollutants Fact Sheet on diisocyanates


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The Coordinating Committee For Automotive Repair (CCAR ®) is providing the information contained in the CCAR-GreenLink® Virtual Shop and the related databases as a public service. CCAR® believes that the information is correct and accurate, as of the date posted, and has no reason to believe otherwise. However, CCAR® does not guarantee the correctness or accuracy of the information, and will not be responsible for incorrect or inaccurate information, or any damage or loss suffered by any person as a result of reliance on such information. The information presented relates to environmental programs of the Federal government. Regulations, and rulings, of state and local governments may apply in lieu of, or in addition to, the Federal rules, and should be reviewed before taking any action in reliance on this information.

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