Finely milled quartz powder (silica flour) for use as a filler, extender and functional additive in coatings, rubber, plastics, adhesives, ceramics and refractory mixes.
Sub-micron to 200 mesh. Custom D50 specifications from 3µm to 75µm.
Industrial to high-purity grades (95-99.8% SiO₂). Low iron content available.
Untreated or hydrophobic/coupling agent treatments available on request.
Paper sacks, lined bags, bulk FIBCs (jumbo bags), or bulk vessel shipments.
| Parameter | Industrial Grade | High Purity Grade |
|---|---|---|
| SiO₂ (%) | 95.0 - 98.0 | 99.0 - 99.8 |
| Fe₂O₃ (ppm) | < 800 | < 100 |
| Al₂O₃ (%) | < 1.5 | < 0.3 |
| Loss on Ignition (LOI) | < 0.3% | < 0.1% |
| Moisture Content | < 0.3% | < 0.15% |
| pH (10% slurry) | 6.5 - 7.5 | 6.8 - 7.2 |
| Bulk Density (g/cm³) | 0.6 - 0.9 | 0.7 - 1.0 |
| Grade Name | D50 (µm) | Mesh Equivalent | Primary Applications |
|---|---|---|---|
| Ultra-Fine | 3 - 5 | ~4000 mesh | Coatings matting, high-gloss paints |
| Super-Fine | 5 - 10 | ~2000 mesh | Plastic/rubber reinforcement |
| Fine | 10 - 20 | ~1000 mesh | Adhesives, sealants, compounds |
| Medium-Fine | 20 - 45 | 325 - 635 mesh | Industrial fillers, foundry coatings |
| Standard | 45 - 75 | 200 - 325 mesh | Construction, ceramics, refractory |
Note: Custom D10/D50/D90 particle distributions available. Laser diffraction particle size analysis provided with COA.
Matting agents, texture additives, abrasion resistance enhancement. Improves rheology and filler economy in architectural and industrial coatings.
Reinforcing filler in rubber compounds, plastics, and elastomers. Improves mechanical properties without sacrificing flexibility.
Thixotropic agent, thickener, and anti-sag additive. Controls viscosity in epoxy, polyurethane, and silicone formulations.
Ramming masses, mould coatings, refractory brick formulations. High thermal stability for extreme temperature applications.
Engineered stone countertops, epoxy floors, grouts, self-leveling compounds. Consistent particle size improves surface finish.
Ceramic body formulations, glaze compositions, porcelain production. Controlled melting behavior for optimal firing.
Test our quartz powder in your formulation. Get samples, COA, particle size analysis, and TDS.
How particle size affects gloss, texture, and durability in coating formulations.
Read Article →Coarse to medium grits for foundry, abrasives, glass, and ceramic applications.
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