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What is the role of dimethyl silicone in coatings and plastics?

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Using the unique surface properties of dimethyl silicone, adding a very small amount to paints and inks can prevent color unevenness, improve stretchability, make the surface of the coating film uniform, increase brightness and smoothness. High viscosity methyl silicone oil can also be used as a defoaming agent for coatings. However, improper use and dosage will have the opposite effect. Paints containing silicone oil do not have good compatibility with other paints and should not be mixed with each other. The amount of silicone oil added is generally controlled between 0.01% and 0.5%.

Mixing methyl silicone oil into thermoplastic resin can give the plastic new properties. Improve the mold release of plastics (internal release agent) and the dispersion of inorganic fillers in resin, improve the fluidity of resin and the surface lubricity and wear resistance of products. POM, PA, HIPS, ABS and other resins added with methyl silicone oil have been widely used to make wear-resistant and lubricating plastic parts, such as gears for OA equipment.

Dimethyl silicone oil can be used as an additive for many other materials. For example, it can be used as a gloss enhancer for paint. Adding a small amount of silicone oil to the paint can make the paint non-floating and wrinkle-free and improve the brightness of the paint film. Add a small amount of silicone oil to the ink. , can improve the printing quality. Adding a small amount of silicone oil to the polishing oil (such as automobile varnish) can increase the brightness, protect the paint film, and have excellent waterproof effect.


Regarding silicone oil, please view details:
https://www.siliconefoam.net/product-hydroxyl-silicone-oil-for-fumed-silica-iota-1203d-.html

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