Silicone raw materials 1. Professional in this line. 2. Base gum. 3. Non-toxic dense liquid. 4. Wholesale price. silicone raw materials Technical Indexes No. ItemSM01SM02SM03SM04IndexesFirst gradeUp to StandardUp to standardUp to standardUp to standardKinematic viscidity,25°C,mm2/s2000~200000500000~2000000500±501500±500Volatilization,150°C,3h,%≤1.60≤2.00≤2.50≤3.00≤3.00Surface sulfuration time≤2. ...