Hardness and Inertness for Durable Coatings
Coating Silica Powder is a high-performance functional filler. It is made from high-purity crystalline quartz. This material is very hard and chemically inert. When added to exterior paints or industrial primers, it boosts the coating's resistance to sand impact and salt spray corrosion. Many of our clients in coastal industrial zones trust our product for these demanding conditions. It is a reliable choice for protecting surfaces over the long term.
Controlled Particle Size for a Smooth Finish
Paint formulators often worry about how a filler affects gloss and clarity. Our Coating Silica Powder solves this with precise size control. We can achieve a D50 with an accuracy of ±1μm. This means the powder does not make the film rough. It also does not absorb too much oil, which would hurt flow. One of our epoxy floor coating customers reported a 20% increase in abrasion resistance after using our product. The gloss stayed excellent. This shows the real difference our 25 years of experience can make.
Key Specifications for Formulators
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 99.0% |
Chemical Analysis |
|
Whiteness |
≥ 92 |
Whiteness Meter |
|
Oil Absorption |
20 - 28 g/100g |
Scraper Method |
|
Particle Size (D50) |
5μm - 25μm (Customizable) |
Laser Diffraction |
|
Residue on 325 Mesh |
≤ 0.02% |
Sieve Analysis |
|
Moisture Content |
≤ 0.20% |
Oven Drying Method |
|
pH (Water Suspension) |
6.5 - 7.5 |
Potentiometric Method |
Versatile Applications and Custom Service
Our Coating Silica Powder works well in many coating types. It is a great reinforcing filler for architectural latex paints and textured finishes. In industrial primers and topcoats, it boosts density and blocks penetration. We also offer custom grades. You can specify your needed particle size, max particle size, and oil absorption. We can even modify the powder surface to improve compatibility with your resin system. This makes our product a versatile partner for your formulations.
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