What is it?
Hexamethylene diisocyanate is a substance in polyurethane paints and lacquer. It is also used in the manufacture of nylon and as a hardener in both automobile and aircraft paints.

How can I avoid it?
Avoidance requires reading the product labels, package inserts, Safety Data Sheets (SDS), and on occasion, direct communication with the manufacturer.

  • Contact lens
  • Dental materials
  • Enamel coating
  • Paint hardeners
  • Polyurethane lacquers and foams

Other names for Hexamethylene diisocyanate:
  • 1,6-Hexamethylene diisocyanate
  • 1,6-diisocyanatohexane
  • Desmodur H.
  • HDI
  • Hexamethylene-1,6-diisocyanate
  • Hexamethylene diisocyanate
  • HMDI
  • Mondur HX
  • Poly(hexamethylene diisocyanate)

Potential cross-reacting/co-reacting substances:
  • Other isocyanates


How safe is it?

Hang tight. We're thinking.