BLACKHAWK can be used on metal glass, porcelain, ceramics, wood rubber and most paint and plastics. As an instant gasket maker, this product replaces a wide range of cork, paper, asbestos, felt and metal gaskets. This product has excellent adhesion characteristics, high chemical resistance and will not sag of shrink. BLACKHAWK withstands intermittent temperatures up to 600 degrees F and pressure up to 350 psi. BLACKHAWK is virtually unaffected by chemical deterioration, extreme weather, temperature or aging.