silica PTFE sheet is a style of modified PTFE, It contains silica particles and suitable for almost all the media of PH0-14, especially for the strong acid and strong base class (except hydrofluoric acid),It is also suitable for the sealing of the solvent,water,steam,chlorides and other media.It is applies to high pressure and temperature,varieties of fluid that the sealed condition is more demanding operating conditions, strong acids, alkalis,gases,solvents,hydrocarbons,water,chlorine,aluminum chloride,hydrogen peroxide,etc