Different grade of the liquid silicone rubber

1) Food grade silicone,it can be divided into solid silicone and liquid silicone and the raw material price is about USD4~10/ KG, usually, it need to provide FDA, LFGB and other food grade certifications. This kind of food grade silicone material can be used for silicone control valves, silicone gaskets, silicone sleeves, VR silicone covers and other silicone Consumer Products.

2)Medical grade silicone, including solid silicone and liquid silicone.And the raw material cost is about USD10 to USD40/KG, the ISO10993 or bio-compatibility certifications can be provided as requirements. This kind of medical silicone raw material usually to be used for production of medical silicone wound drainage ball, medical silicone airbag, medical silicone check valve or other high-end custom silicone components for medical devices.

3) Optical grade silicone is only available in liquid silicone, and the raw material price is about USD60 to USD120/ KG, there will be performance testing report to clarify the light transmission, flame resistance, durability and so on. And, it can be used to make optical silicon lens for LED lighting, silicone reflective lenses for street lamps, LSR silicon optics for ADB automotive headlights.

For now, our main silicone raw materials suppliers are : Elkem, Shin-Etsu (Food grade silicone), Dow Corning, Nusil (Medical grade silicone), Wacker, Momentive, Doneson (Optical grade silicone).

   Guangzhou S-guangyu Machinery & Equipment Co.,Ltd is a professional liquid silicone rubber(LSR) Injection molding machine manufacturers in China since 2010,including LSR injection machine,lsr dosing unit,LSR mold ,automation and so on.We have got more than one hundred patents and serve for more than thousands of customers .If you want to learn more about our machines,please visit our web www.lsrexpert-better.com or contact us:86-13902294163.