Closed Cell Sponge (SC-41 & Monarch 5031) Monarch 5031 / SC 41 is a general purpose fine closed cell sponge that is a blend of EPDM, Neoprene & SBR. Ethafoam Ethafoam is resilient in nature, giving them outstanding recovery characteristics that provide... Open Cell Sponge (Polyester) Open Cell sponge is formulated to feel very soft and pliable. Available in soft, medium and firm densities. Polyethylene Polyethylene is a fine crosslinked foam, ideal for projects that require a thicker foam. Poron® PORON® Microcellular Urethane has an excellent set resistance which enables durable... Reticulated Foam Reticulated foam is a porous, low density foam composed of large reticulated cell that allow it to... Silicone Sponge Silicone Sponge is designed for high temperature applications that requires a soft... Barymat Materials for Sound Absorption and Noise Reduction Barymat BM-1A (.250”thk ) and BM-1C (.3125”thk) is a versatile noise control composite.