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Posted by Admin on April, 15, 2026
Snow White · Ultra-Fine · High Purity SiO₂ · Best Exporter India
600 Mesh Snow White Quartz Powder is the finest commercially available grade of natural ground silica (SiO₂) — classified at an ultra-fine particle size of D50 8–12 microns with a top size below 25 microns. At this fineness, quartz powder behaves more like a functional pigment than a conventional mineral filler — delivering exceptional brightness, smoothness, opacity enhancement, and superior dispersion in liquid paint systems, polymer matrices, and adhesive formulations.
Sourced from the pristine quartz deposits of Rajasthan, India — processed through multi-stage magnetic separation and precision micronizing to achieve SiO₂ 99.5%+, Fe₂O₃ below 0.015%, and a Hunter Lab whiteness of 96–99% — our 600 mesh grade is the product of choice for formulation chemists who demand the absolute best white mineral filler available.
Aalok Overseas supplies this grade in bulk to paint manufacturers, coating formulators, rubber compounders, adhesive producers, and plastics compounders across Europe, the Middle East, Southeast Asia, Africa, and the Americas. Complete NABL-certified COA, GHS MSDS, and Certificate of Origin provided with every shipment.
| Parameter | Value / Detail | Significance for Buyers |
|---|---|---|
| Product Name | 600 Mesh Snow White Quartz Powder / Ultra-Fine Silica Flour | Used in trade, tenders, and purchase orders globally |
| Chemical Name | Silicon Dioxide (Crystalline Quartz) | Official IUPAC name for customs & regulatory declarations |
| Chemical Formula | SiO₂ | Simplest mineral formula — pure silicon dioxide |
| CAS Number | 14808-60-7 | Mandatory on MSDS Section 3, customs declarations, REACH dossier — crystalline silica (quartz) |
| EC / EINECS Number | 238-878-4 | EU regulatory identifier — required for REACH compliance declarations |
| REACH Registration | 01-2119458434-33 | EU REACH registered substance — mandatory for EU import clearance |
| HS Code (Quartz Powder) | 2811.22.00 | Silicon dioxide (ground) — used for all processed quartz powders & silica flours |
| HS Code (Natural Quartz) | 2506.10.00 | Natural quartz (crude or roughly trimmed) — alternative classification used by some customs |
| Mesh Size | 600 Mesh (BSS / ASTM) | Particle opening 25 microns — finest commercial grind for paint & filler use |
| D50 Particle Size | 8–12 microns (µm) | Verified by laser diffraction (Malvern / Sympatec) — tight PSD for consistent formulation |
| D90 Particle Size | <22 microns (µm) | Very low oversize — smooth film, no grit in paint films or adhesive joints |
| Mohs Hardness | 7.0 | Adds scrub resistance & durability to paint films without abrasive damage to rollers |
| Specific Gravity | 2.65 g/cc | Standard for all quartz grades — consistent density for formulation gravimetric calculations |
| GHS / MSDS Note | ⚠ Contains Respirable Crystalline Silica (RCS) — IARC Group 1 — declared in SDS Section 3 | Mandatory declaration for EU REACH, US OSHA HCS, UK COSHH, AU Safe Work compliance |
| Oxide / Parameter | CAS No. | 600M Snow White | Standard 325M | Why It Matters |
|---|---|---|---|---|
| SiO₂ (Silicon Dioxide) | 14808-60-7 | 99.5–99.9% | 99.0–99.5% | Core purity — higher = whiter, more chemically inert, better TiO₂ extension |
| Fe₂O₃ (Iron Oxide) ⭐ | 1309-37-1 | <0.015% | <0.040% | ⭐ MOST CRITICAL — Fe₂O₃ <0.015% delivers true snow white; any higher causes visible yellowing |
| TiO₂ (Titanium) | 13463-67-7 | <0.008% | <0.020% | Ultra-low TiO₂ eliminates yellowish tint — critical for pure white paint films |
| Al₂O₃ (Alumina) | 1344-28-1 | <0.05% | <0.15% | Very low — confirms high purity; no aluminosilicate contamination |
| CaO (Calcium Oxide) | 1305-78-8 | <0.02% | <0.05% | Trace level — confirms freedom from carbonate contamination |
| MgO (Magnesia) | 1309-48-4 | <0.01% | <0.03% | Negligible — high mineral purity |
| K₂O + Na₂O (Alkalis) | — | <0.03% | <0.08% | Ultra-low alkalis — maximum chemical inertness in paints & coatings |
| LOI (Loss on Ignition) | — | <0.08% | <0.15% | Pure mineral — zero organic content, no gas evolution in coatings |
| Moisture | — | <0.08% | <0.15% | Bone dry — free-flowing, no caking; critical for dry powder blending |
| Whiteness (Hunter Lab) ⭐ | — | 96–99% ⭐ SNOW WHITE | 90–94% | Highest whiteness in Indian quartz production — extends TiO₂ up to 15% in paints |
| pH (10% aqueous slurry) | — | 6.8 – 7.5 | 6.5 – 7.5 | Near-neutral pH — compatible with all paint binders, latex, acrylic & alkyd systems |
| Oil Absorption | — | 18–22 g/100g | 20–28 g/100g | Low oil absorption at 600M — more efficient binder use, higher filler loading possible |
| BET Surface Area | — | 3.5–5.0 m²/g | 1.5–3.0 m²/g | Higher surface area improves adhesion, pigment dispersion & barrier properties |
600 mesh snow white quartz is the most efficient mineral extender available for white emulsion, exterior latex, and high-build architectural coatings. At D50 8–12µm it sits in the optimal particle size range for scattering visible light — maximising hiding power alongside TiO₂ and dramatically reducing TiO₂ requirement per litre of paint.
- Premium exterior emulsion (weather-resistant white)
- Luxury interior white and off-white paints
- High-build masonry coatings
- Powder coatings (polyester & epoxy)
- UV-curable white coatings
In premium white wall putty formulations, 600 mesh snow white quartz provides an exceptionally smooth, bright base that outperforms conventional 200–325 mesh fillers. The ultra-fine particle size fills micro-pores in the substrate, creating a denser, more uniform surface that requires fewer coats of top-coat paint and delivers a brighter final wall.
- Premium white wall putty (cement-based)
- Polymer-modified skimming compounds
- Lime plaster & finishing coats
- Tile adhesive premium grades
At 600 mesh / D50 10µm, snow white quartz acts as a semi-reinforcing filler in rubber and polymer compounds. The ultra-fine, uniform particle size delivers superior dispersion, smoother finished surfaces, and better mechanical property retention compared to coarser fillers. Ideal for white and light-coloured rubber products where iron-staining from filler must be zero.
- White silicone rubber compounds
- Light-coloured PVC, PE, PP compounds
- White TPE & TPR footwear soles
- Medical & food-grade rubber (inert filler)
In white silicone sealants, polyurethane adhesives, and acrylic caulks — where the finished product must be visually clean white — 600 mesh snow white quartz is the filler of choice. Its ultra-fine size provides perfect thixotropic control, no colour interference, and smooth extrudability. Widely used by sealant manufacturers targeting premium European and GCC markets.
- White silicone bathroom & kitchen sealants
- Polyurethane construction adhesives
- Acrylic & latex caulking compounds
- White epoxy adhesives & floor coatings
In premium ceramic glaze formulations where maximum SiO₂ purity and minimum iron contamination are essential, 600 mesh snow white quartz is the preferred SiO₂ source. Its ultra-fine particle size ensures rapid, complete dissolution into the glaze melt at firing temperature — resulting in defect-free, crystal-clear transparent glazes and brilliant opaque white engobe layers.
- Transparent glaze (low-iron SiO₂ source)
- White opaque engobe & underglaze
- Digital printing base layer
- Porcelain stoneware glaze
The ultra-fine platelet-like fragments of 600 mesh quartz, when oriented parallel to a substrate surface in a coating film, create a highly effective tortuous diffusion barrier against moisture and corrosive gases. Combined with its snow-white brightness, it is ideal for white anti-corrosion topcoats on steel structures, pipelines, marine vessels, and industrial equipment.
- White anti-corrosion topcoats
- Marine & offshore white coatings
- Industrial equipment finish coatings
- Architectural white protective coatings
| Performance Parameter | 600 Mesh Snow White | Standard 325 Mesh | Impact on Your Product |
|---|---|---|---|
| D50 Particle Size | 8–12 µm | 20–30 µm | Finer = smoother film, better dispersion, improved barrier properties |
| Fe₂O₃ Content | <0.015% | <0.04% | 600M is 2.5× cleaner — visibly brighter in white formulations |
| Whiteness (Hunter Lab) | 96–99% ⭐ SNOW WHITE | 90–94% | 5–9 whiteness points brighter — visible difference in finished white product |
| TiO₂ Replacement | Up to 15% TiO₂ reduction | 8–10% TiO₂ reduction | Extra TiO₂ savings pay for the premium price of 600M grade |
| Surface Area (BET) | 3.5–5.0 m²/g | 1.5–3.0 m²/g | Higher surface area improves adhesion, pigment dispersion & barrier |
| Film Smoothness | Extremely smooth — no grit | Good — slight texture possible | Critical for high-gloss & semi-gloss white paint finishes |
| Oil Absorption | 18–22 g/100g (lower) | 20–28 g/100g | Lower oil absorption allows higher filler loading at same viscosity |
| SiO₂ Purity | 99.5–99.9% | 99.0–99.5% | Greater chemical inertness — better compatibility with all binder systems |
| Best Use Case | Premium white paints · luxury putty · silicone sealants · glaze · specialty coatings | Standard paints · tile adhesive · rubber · construction chemicals | Choose 600M when formulation quality & whiteness are non-negotiable |
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