... 1.Product Description; We specialize in producing all kinds of silicone foam seal whose density can be made from 0.35 ... and 500mm, length 2meters, foam density controllable. 2. Index of Silicone foam tube; ItemUnitTest StandardPerformanceFoam HardnessShore CHG/T2489-9335±5Elongation %GB ... gifts, IT electronics industry, metal, plastic, auto parts, home etc. Silicone Foam & Sponge sheet