Hardness is measured with scales Shore D, Shore OO, and Shore A, which is the most common scale. A higher number means the material is harder and more resistant to penetration. Each full roll is 10 metres long x 1.4 meters wide and is supplied in either 1.5mm, 5mm, or 10mm thickness with the 15mm thick sheet being 5 metres long. For... SBR (styrene butadiene rubber) is a synthetic rubber that provides good abrasion resistance. The black SBR rubber sheet is 60 Shore A and has a smooth finish. SUMMER LI On : Black 65 Shore A Smooth Finish SBR Styrene Activity 6604909595821473792 Suip Solution Styrene Butadiene Rubber China - Polykem Rubber A hardness measurement of 60 Shore A means the material has a medium-hard surface that has a balance of good penetration resistance with good bending and forming capability. Rubber is a strong, flexible material that provides good insulation and shock absorption. Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Synthetic Rubber Material SBR (Styrene Butadiene Rubber) Sheet, 60 Shore A, Black 60 Shore A Rubber 60 Shore A means the material is medium-hard for a balance of good resistance to surface penetration and good formability , Color is black , Smooth finish