The raw materials for processing this rubber are enchanting (freeze, bewitching, bewitching) we can mix together in appropriate proportions to create quality products. Technical parameters for this rubber are Po number, substance content, plasticity retention index PRI, ash content, volatile matter content, nitrogen content. The different natures from the raw materials used to transform this rubber require a stricter quality control than the latex derived grades (SVR L, CV) and have a combination corporate case, difficult. The production of rubber blocks from helmets requires many steps: washing the ingredients, chopping, chopping (reducing size)