Spherical Fused Silica Powder for Coatings CAS 7631‑86‑9 is amorphous fused silica produced by high‑temperature flame spheroidization of quartz, followed by classification and particle‑size adjustment. Uniform spherical particles provide moderate hardness without sharp abrasive cutting effect. It is incorporated into coating systems to increase surface scratch resistance and wear resistance of paint film. The filler is widely used for wood paint, industrial topcoats and metal anti‑corrosion coat

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Spherical Fused Silica Powder for Coatings CAS 7631‑86‑9, Scratch‑Resistant Wear‑Resistant for Wood Industrial & Anti‑Corrosion Paint

This coating‑grade spherical fused silica powder is manufactured from selected quartz feedstock through high‑temperature flame melting, spheroidization, air classification and fine sieving. The final product consists of smooth amorphous spherical SiO₂ particles with controlled particle‑size distribution tailored for paint formulation requirements. Unlike sharp‑edged angular silica fillers, the rounded particle morphology provides effective wear‑resistant reinforcement while minimizing excessive abrasive wear on coating application equipment such as sanding media, spray nozzles and mixing agitators.

When dispersed within liquid paint binder, the rigid spherical silica particles are evenly embedded inside the cured coating film. The rigid inorganic network improves surface hardness, enhances scratch resistance and slows down surface abrasion during mechanical friction. It extends the service lifespan of coating layers. Meanwhile, the spherical particle geometry can moderately adjust rheological behavior of paint slurry, improving anti‑settling suspension performance and reducing sedimentation tendency during paint storage.

For wood coating applications including furniture and wooden cabinet finishes, this silica filler boosts surface mar‑resistance of clear and pigmented wood paint films. It reduces visible scratch marks generated during furniture handling and daily usage, while retaining acceptable leveling property of wet coating. Excessively coarse particle fractions are strictly controlled to avoid undesirable matte grainy surface appearance on high‑gloss wood topcoats.

In general industrial topcoat and heavy‑duty anti‑corrosion paint for metal substrates, the filler reinforces the cured anti‑corrosion film. It reduces micro‑crack formation under mechanical impact and temperature fluctuation. The dense inorganic filler network helps retard penetration of moisture, oxygen and corrosive media toward the metal base, indirectly improving long‑term anti‑corrosion performance of protective paint systems. This grade is not optimized for ultra‑fine semiconductor electronic encapsulation requirements.

During coating production, sufficient low‑to‑medium speed dispersion is recommended. Intense long‑term high‑speed bead milling should be avoided, because prolonged mechanical grinding may fracture spherical particles and produce sharp fine fragments, which would increase abrasion risk for subsequent spraying and sanding operations. Formulators need to optimize filler loading. Over‑dosage will negatively impact paint leveling, gloss and film flexibility, potentially inducing coating brittleness and micro‑cracking.

The powder shall be stored in sealed moisture‑proof packaging under dry warehouse conditions. Moisture absorption may trigger flocculation inside solvent‑based and water‑based paint systems. Cross‑contamination with ultra‑fine electronic‑grade silica should be prevented during material handling. This spherical fused silica powder is a functional mineral reinforcing filler formulated for wood coatings, industrial finishes and heavy‑duty anti‑corrosion paint.

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Spherical Fused Silica Powder for Coatings CAS 7631-86-9, Scratch-Resistant Wear-Resistant for Wood Industrial & Anti-Corrosion Paint

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.