... :2008,UL,FDA,SGS Certificate GL-1131 Silicone Rubber Compound Commodity nameCommon silicone Rubber for MoldingItemGL-1131AppearanceMicro-translucentDensity(g/cm³)1.10±0 ... permanent deformation , excellent performance, suitable for produce ordinary silastic products and miscellaneous buttons, moulding, ordinary silicone rubber products Silicone Rubber Compound(GL-1131)