Polyurethane foam

Polyurethane foam (CAS 9009-54-5, EC 210-898-8) is a polymer resin produced by reacting polyols with diisocyanates, available under trade names including Andur, Curene, Etheron, and Pliogrip, and commonly abbreviated as PU foam. It carries no assigned E-code and is classified within the Polymers and Resins category.

In building and construction, PU foam functions as a rigid insulation board where closed-cell structures trap gas to resist heat transfer. In automotive and aerospace applications, flexible-grade foams absorb mechanical energy in seating and interior panels, while formulated variants act as plasticizers and softeners to modify the stiffness of composite assemblies.

PU foam is supplied in rigid board, flexible sheet, and liquid precursor grades, with powder and suspension forms available for specific formulation requirements. Procurement should confirm REACH compliance documentation and supplier Safety Data Sheets prior to import into the EU. Packaging formats vary by grade and supplier volume commitments.