It is applicable for all kinds of corrosive chemicals,including strong corrosive liquids (such as liquid strong alkali,hydrochloric acid and sulfuric acid),organic solvent and liquid nitrogen,etc.It is used in the sealing of flange,valve,reaction kettle and pump in the industrial fields of petroleum,chemical engineering,chemical fiber.coal mining,electric power generation,metallurgy,etc.
The main types are:board,stick,pad,film,etc