Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker - 82180 is a fast curing, general purpose sealant formulated specifically for extreme temperature and chemical resistance. It has excellent adhesion to most surfaces and is ideal for forming gaskets for mechanical assemblies. It is designed for use on automotive, marine, RV, and industrial applications. It resists oil, water, weather, vibration, and grease and has superior flexibility and adhesion.