NR no polar group pads, non-polar rubber, only resistant to some of the polar solvent. Not dissolved in ethyl acetate, ethanol and acetone. In a non-polar solvent gasoline, benzene and the like are swollen. Oil poor solvent resistance and alkali resistance, but intolerant of concentrated acid. Rubber products through the coil due to the presence of benzene over the line pads, high friction. SBR flexibility, strength, flex cracking resistance, cold resistance and like better than NR. When ordered repeatedly deformed pads, heat pads made large, rolling, extrusion deformation large, difficult to process. Poor adhesion, stickers synthetic difficulties. But SBR wear and good ventilation. Daquan pads, Shun Plastic (certified), pads are provided by Hengshui Shun Rubber Products Company Limited. Hengshui Shun Plastic Products Co., Ltd. (www.hsdashun.com) Hebei Hengshui, industrial rubber (milk) Polystyrene leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In Shun Plastic leadership with the staff warmly welcome all inquiries negotiations to create Shun Plastic better future.