Isocyanates are compounds containing the isocyanate group (-NCO). They react with compounds containing alcohol (hydroxyl) groups to produce polyurethane polymers, which are components of polyurethane foams, thermoplastic elastomers, spandex fibers, and polyurethane paints.

Where are isocyanates found?

A: Isocyanates are commonly found in automotive paints, foam cushions, mattresses, car seats, foam insulation, foam packaging materials, under-carpet padding, polyurethane rubber and adhesives.

How are isocyanates released?

Application of isocyanate containing products by dipping, brush or roller, in a well‑ventilated area, generally results in lower levels of risk to workers(5). ... However, the welding or burning of polyurethane coated surfaces can release a range of contaminants, including isocyanates(8).