Silicone oil is widely used in plastic processing due to its excellent lubricating properties, thermal stability, and low surface tension. It plays a vital role in processes such as injection molding, extrusion, and calendaring, helping to improve efficiency and product quality.

As a lubricant, silicone oil reduces friction between molten plastic and machine parts like barrels and dies. This results in smoother flow, improved mold filling, and reduced defects such as drag lines, discoloration, or air pockets. It is especially helpful when processing high-viscosity or heat-sensitive resins.

Silicone oil also serves as an effective mold release agent. Its low surface energy allows it to form a thin film between the mold and plastic surface, ensuring clean, easy demolding. This is especially valuable for complex or high-gloss plastic parts, where surface appearance and dimensional accuracy are critical.

In addition to processing benefits, silicone oil can enhance the performance of plastic products. Certain modified silicone oils offer antistatic, anti-dust, or gloss-enhancing effects. These improvements require only low dosage and do not compromise the base properties of the plastic, making them ideal for electronic housings, household items, and precision parts.

Silicone oil is also commonly used as a base in masterbatch and additive formulations. It helps improve the dispersion of pigments or fillers, stabilize the process, and ensure consistent quality in high-volume production.

Overall, silicone oil is a multifunctional additive that improves both processing efficiency and final product performance in the plastics industry. Its adaptability and reliability make it an indispensable tool in modern plastic manufacturing.

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