Silicone oil plays an essential role in the plastics and rubber industries due to its excellent lubrication, mold-release, and thermal stability properties. It is commonly used as a processing aid and additive in materials like polyolefins, PVC, thermoplastic elastomers, and various synthetic rubbers.

In plastic processing, silicone oil functions as a lubricant. Its flexible siloxane structure reduces friction between polymer melts and machinery, preventing buildup and blockage during extrusion and injection molding. This leads to higher processing efficiency and extended equipment lifespan.

In rubber mixing, silicone oil enhances compound flowability and filler dispersion, resulting in more uniform material properties. It works well with silicone rubber, nitrile rubber, and EPDM, making it a valuable additive for high-performance elastomer products.

Silicone oil also serves as an effective mold-release agent. By forming a thin, even film on mold surfaces, it prevents sticking and deformation during demolding, which improves surface finish and reduces defect rates—especially important for complex or precision components.

Moreover, silicone oil enhances the surface quality of finished products. It imparts a smooth, glossy finish and improves scratch resistance, water repellency, and anti-dust properties. Modified silicone oils may also offer added benefits such as UV resistance, flame retardancy, and anti-static behavior.

With growing environmental concerns, low-volatile and high-purity silicone oils—such as hydroxyl-terminated and vinyl-functional types—are increasingly used to meet safety and sustainability standards.

In summary, silicone oil contributes to better processing efficiency and superior product quality in the plastics and rubber industries. Its multifunctional roles make it a reliable and versatile aid for modern material manufacturing.

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