Firebrick Silicone Sponge Rubber Sheet Size T.4 mm x W.1 m x L. m. Is a silicone sponge rubber sheet, smooth surface, high flexibility, good recovery, operating temperature range -70°C to + 270°C, can be used as an insulating sponge rubber sheet. cold insulation sponge rubber sheet Silicone sponge rubber sheet, shockproof floor, etc. Tel : 022577154 MB : 0621515494 LINE OA: @ptirubber