Physical character: made with high quality silicone rubber on drum-type vulcanizing press or vulcanizing press according to the different request from the buyers. Specifications: material: 100% virgin silicone rubber quality: high tear resistant or middle tear resistant color: translucent, dark red, black, milk white, grey, blue etc. surface: smooth/smooth, smooth/impression fabric insertion: reinforce to insert 1 PLY fabric tensile strength: 7-10Mpa hardness: 40, 50, 60, 75 shore A elongation: 350%-720% density: 1.25+/-0.05g/cm3 tear strength: 26-42N/mm working temperature: -60�°C - +260�°C(moment 300�°C) thickness: 0.5-30mm width: 0.5-3.0m length: 1-50m grade: industrial grade, food grade