Urethane Foams, often referred to as Microcellular Urethane Foam, PU Polyurethane, Polyurethane Ester Foam, Polyurethane Ether Foam or PORON® Urethane Foams (Rogers brand), are typically conformable and used for gasketing, insulating, cushioning, sealing and sound damping. 

Polyurethane Foams can be open or closed cell.  Typically, open cell foams feel soft and cushiony but retain their form whereas closed cell foams are firmer and generally used for high-performance applications such as in machinery manufactures or thermal insulation in appliances.  Ester Foam, slightly more rigid and supportive than Ether, is ideal for sound and dust seals as well as light insulation.  Ether Foams are more flexible, have a lower tensile strength, and are better in moist or wet environments when compared to Ester Foam.  Both Ester and Ether Foams can meet UL 94 flammability standards.

Urethane Foam sheets are available plain or with acrylic or rubber adhesive in various thicknesses and densities. Urethane foams can be easily fabricated to meet your specifications.