Product description, Product introduction: Rubber powder is made by crushed and screened methyl vinyl silicone rubber pieces The rubber powder used for friction materials in order to improve the friction performance, improve the friction coefficient and reduce noise. The character of rubber powder: The rubber is used as auxiliary materials, the purpose is to reduce product of hardness and elastic modulus, improve the toughness and impact strength. In brake rubber, the formula of the rubber consumption may be equal to or more than resin usage. The main Ingredient of the rubber binder is rubber, while phenolic tree as auxiliary Ingredient. The rubber has good elasticity, elastic temperature range from 70 �?? to 130 �??.The rubber has excellent flexing resistance, flexible about more than 206 times. Rubber has good abrasion resistance, cold resistance and insulation. If brake material is harder, it is easier to cause braking noise. When add rubber ,it reduces the material hardness and enlarge the adhesive surface to obviously reduce the brake noise. As the main made of soft brake pads products of which the binder is mainly made by Rubber belong to low noise or non-noise friction materials property: Ingredient: mainly of Vinyl silicone rubber powder Color: black or yellow grade:40mesh to 60 mesh