SS expanded cellular silicone rubber has a predominantly closed cell structure with an integral smooth surface skin, leading to very low water absorption. It has high compressibility and low compression set over a wide temperature range, making it an ideal choice for gaskets and seals. It has excellent thermal insulation properties and is also a good acoustic insulation material at the temperature extremes where thermoplastic foams cannot be used. SS grades are suitable for long term continuous use from -60F (-50C) to 400F (204C) and for intermittent use from -80F (-62C) to 450F (232C). Availability Standard firmness grades: soft (SS10), medium-soft (SS20) and medium-firm (SS30)Available in sheets 36in x 36in (915mm x 915mm) and rolls 36in (915mm) wideStandard thicknesses 18, 316, 14, 38, 12, 34, 1inch (3.2, 4.8, 6.4, 9.5, 12.7, 19.1, 25.4mm) normally available from stock in SS10 and SS20 red materialCustom thicknesses are possible from 116in (1.6mm) to 1in (25.4mm) but range may be limited for some grades.Sheets are fully postcured and can be certified to selected ASTM D1056 and ASTM D6576 specifications and AMS 3195 3196Roll stock is not postcured, but can also be certified to AMS 3195 3196Standard color is red; grey, black, white and special color matches are also availableGrey flame retardant grades, SS10FR (UL94 V-0), SS20FR (UL94 V-0)White FDA 21 CFR 177-2600 grade, SS30FDA, for food contact applicationsAvailable in special sizes and die-cut to requirementsAA1 pressure sensitive adhesive backing available by special order