HF-687 Chemical Additives Silica Powder For Coil

SKYSIL HF-687 SILICA MATTING AGENT FOR COIL COATING HF-687 is a large-particle (10-11μm) silica matting agent developed based on the precipitation method. It is specially designed for coil coatings. Through unique structural innovation and surface engineering, it achieves a double breakthrough in efficient matting and coating durability, and is suitable for high-speed coating of metal sheets and harsh environmental protection needs. - Precise particle control by precipitation method: a spherical porous structure (pore size 20-50nm, specific surface area 150-180㎡/g) is constructed through a gradient precipitation process. The particle uniformity (PDI＜0.25) is better than similar products, ensuring the optical consistency of the coating. - Surface hybrid modification: Silane-wax composite coating forms a hydrophobic interface (water contact angle＞120°), blocks water and oxygen penetration, and inhibits rust on metal substrates. - Ultra-thin and efficient matting 10-11μm larg…

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