Ask the Expert Question-and-Answer Archive

by Ron Joseph

December, 2007

Are Clear Coats Hazardous to Your Health?

Q: Have you heard of any connection between automotive clear coats and heart problems if used in confined area over time ?

A: I'm not an industrial hygienist nor a toxicologist; however, automotive clear coats are usually two-component polyurethanes. Component B, the curing agent, contains a poly diisocyanate that can be harmful to one's health, and all painters are warned to wear the appropriate protective equipment, including respirators when using these coatings. More commonly, the effect of excessive inhalation apparently affects breathing.