Pure natural rubber sheet/ Gum rubber sheet/ Para rubber sheet Apply to punch all kinds of seals, gaskets and others applications with its good function, for example of truck lining, drinking water lining or rubber membrane special for PVC vacuum laminating press. Physical character: The natural rubber is from the natural rubber tree with middling hardness and high tensile strength, high elongation, good abrasion resistance, elasticity, safety and non toxicity without smell. Working under the higher pressure, wearing resistant, food grade lining status at the temperature of -35°C - +85°C in air or water. Produce Process: Made by ROTOCURE vulcanizing press or vulcanizing press with high quality natural rubber (NR). 1-6mm thickness is made by ROTOCURE vulcanizing press with shiny surface, 7-50mm thickness is made by vulcanizing press for get higher thick thickness.