Friday, November 25, 2011

Cork Rubber Gasket

A gasket material that comprised of cork binded together with an elastomer. It is manufactured by combining the cork, glycerine-glue, and a rubber binder under heat and pressure (usually 70% cork to 30% binder). The elastomers are added to provide sealability and chemical compatibility while helping to resist fungus, acid and weather conditions. Cork rubber sheet material is cost effective, good for low-bolt load applications, light weight, long shelf life, easy to handle, less sticking to flanges, resistant to fluid penetration, absorbs vibration and has low thermal conductivity. This style of gasket material is commonly used in automotive applications such as oil pan, valve cover and timing gear cover gaskets because of its good suitability in oil. It should not be used in strong alkaline and acid conditions because it will be chemically attacked and the cork particles will degrade. Cork rubber material comes in a wide variety of elastomers, such as EPDM, Natural Rubber, Synthetic Rubber, Neoprene and Nitrile, to best suit the chemical resistance requirement of the gasket.

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