Sponge & Foam Gasket Material
We manufacture sponge gaskets and foam gaskets that range from soft to firm in density and have different physical properties for resistance to chemicals and temperatures. Foam gaskets are flexible with an open cell structure and are used for thermal and acoustic insulation, shock and vibration control, and to seal out dust and moisture.
Sponge gaskets and materials have a closed cell structure and are soft, compressible, and perform well in extreme temperatures. They effectively seal out fluids and are commonly used in outdoor applications and for vibration reduction.
Differences in the Physical Properties of Sponge Gaskets and Foam Gaskets
Sponge and foam gaskets may appear similar and manufactured using similar processes, but they have different mechanical and physical properties.
The specific properties of foam gaskets vary depending on the type of polymer used. Cross-linked polyethylene foam provides excellent chemical resistance, plus good mechanical and thermal insulation. Polyurethane foam gaskets are used for cushioning and ideal for thermal and acoustic insulation, and dust and moisture sealing. Both compounds perform well in wet environments.
Sponge gasket material is made using a similar method, but the cells produced are more self-contained and evenly distributed. This closed cell structure provides better compression set resistance and compression recovery and completely blocks the passage of gas or fluid. Materials such as neoprene and silicone deliver superior temperature resistance and many neoprene sponge gaskets also meet UL flame ratings. These properties make sponge gaskets and materials an excellent option for automotive, construction, marine and HVAC applications.