Term Description
Isocyanate

A highly reactive organic chemical containing one or more isocyanate groups. A basic component in spray polyurethane foam systems and some polyurethane coating systems. See "A-component (A-side)" and "methylene diphenyl diisocynate (MDI)."
Polymeric methylene diphenyl diisocyanate (PMDI)

See "methylene diphenyl diisocynate (MDI)."