In general, the basic ingredients of gaskets are of three types, namely metal, non-metal and half metal. Metal gaskets are made of copper, aluminum or brass. Non-metal gaskets are usually made from asbestos, rubber, paper, hemp, leather, cork and ceramics. Usually as a seal between nonmetal gasket components used using asbestos, rubber and paper based materials. For semi-metal materials are usually a combination of metal and non-metal materials.
