Gum is specifically designed for the production of HCR masterbatches, pigment masterbatches, processing aids, silicone elastomers, as well as reinforcing and diluting fillers for plastics and organic elastomers, and is commonly used in industrial applications. Based on the functional groups and their application characteristics, it is categorized into Methyl Vinyl Gum (Polydimethyl Vinyl Siloxane) and Non-vinyl Gum (Polydimethyl Siloxane). Methyl Vinyl Gum contains vinyl groups and is typically used in high-elasticity, high-strength seals and gaskets, making it suitable for high-elasticity sealing applications. Non-vinyl Gum, with a vinyl content of 0, offers excellent heat resistance, hydrolysis resistance, and chemical inertness.