Characteristics1) Made of 100% food grade silicone rubber2) High voltage (up to 16kv/mm) resistant and high temperature (-40 to 250癈) resistant3) Impregnant proof, which means it is resistant for acid, alkali, hydrocarbon, chloride, ester, aether, ketone, and so on4) Radiation proof5) Physically inert, nontoxic and inodorousOEM services available! producing area:China