indianceramica@gmail.com - GST NO. : 23ASHPA0569P1ZM
- Send Email
Posted by Admin on August, 26, 2026
A fine, micronized grade built for dispersion — not fired ceramics. Used as a functional filler in paints, rubber, plastics, adhesives and construction chemicals, where surface area and consistent particle size matter more than whiteness. Mine-direct from Rajasthan, India, with batch-tested purity on every shipment.
Why 400-500 Mesh Is the Filler Standard, Not a Ceramic Grade
Filler applications judge silica powder on a different set of criteria than ceramics do. A paint, rubber compound or adhesive doesn't get fired — it needs the filler to disperse evenly, control viscosity and texture, and reinforce the cured or dried material without settling out or clumping. 400-500 mesh gives the fine, high-surface-area particle size that dispersion needs, while filler-grade iron tolerance keeps the cost meaningfully below the low-iron 400-500 mesh material sold for glazes and glass, where whiteness is the priority instead.
Aalok Overseas grinds 400-500 mesh Quartz Powder mine-direct from Rajasthan quartz, holding consistent particle size distribution so formulators get predictable dispersion and rheology behavior batch after batch.
Where 400-500 Mesh Fits Against Other Grades
Note: 400-500 mesh is also used in glaze and glass applications, but at a lower-iron specification than the filler grade covered on this page — see our main Quartz Powder page for the glaze/glass version of this mesh range.
Specification Sheet — 400-500 Mesh Filler Grade
| PARAMETER | TYPICAL VALUE |
|---|---|
| SiO2 | 97% - 99% |
| Fe2O3 | 0.05% - 0.15% |
| Al2O3 | 0.3% - 0.8% |
| Whiteness (GE) | 78 - 88 (not tightly specified for most filler uses) |
| Mesh Size | 400-500 mesh (BSS/ASTM), 85%+ passing |
| Moisture | Below 0.2% |
| Oil Absorption | Available on request for paint/coating buyers |
Where 400-500 Mesh Filler-Grade Quartz Powder Is Used
Paints & Coatings
Fine extender controlling matte finish, texture and viscosity in interior and exterior paint formulations.
Rubber Compounding
Fine filler contributing to abrasion resistance and mechanical reinforcement in general rubber goods.
PVC & Plastics
Micronized filler used in plastic compounding where fine, consistent dispersion is required for surface finish.
Adhesives & Sealants
Bulking and rheology-control filler in construction adhesives, caulks and sealant formulations.
Epoxy & Resin Systems
Fine filler in epoxy flooring, potting compounds and resin-based coatings needing smooth surface finish.
Putty, Caulk & Fillers
Base filler in wood putty, wall filler and caulk products where a smooth, sandable finish is required.
Agrochemical Carriers
Fine carrier and anti-caking agent in powder-based pesticide and fertilizer formulations.
Investment Casting Slurries
Fine silica component in shell-mold slurry systems for precision metal casting.
Quality Documentation
Each shipment of 400-500 mesh filler-grade Quartz Powder ships with a batch-specific, XRF-tested Certificate of Analysis covering SiO2, Fe2O3, whiteness and particle size distribution. First-time buyers can request a pre-shipment sample to trial dispersion and finish in their own formulation before committing to a full container order.
Export & Packing
| DETAIL | STANDARD TERMS |
|---|---|
| Packaging | 25 kg / 50 kg PP or HDPE bags on pallets; 1-ton jumbo bags on request |
| Loading | 20ft & 40ft standard containers; bulk vessel loading for large orders |
| Export Ports | Mundra & Kandla, Gujarat, India |
| Core Export Markets | Vietnam, Indonesia, Malaysia, GCC, Sri Lanka, Bangladesh, Turkey |
| Trade Terms | FOB, CFR, CIF |
| Minimum Order | 1x 20ft FCL (trial quantities available) |
Related Reading
Frequently Asked Questions
Why use 400-500 mesh instead of coarser grades for fillers?
Finer particle size gives higher surface area, improving dispersion in paints, rubber, adhesives and resins — better surface finish, viscosity control and reinforcement than coarser 100-200 mesh material suited to ceramic bodies.
Does filler-grade 400-500 mesh need to be low iron?
Not usually — filler applications bind the material into a colored or opaque matrix, so standard iron levels (0.05-0.15% Fe2O3) keep cost lower than the ultra-low-iron material sold for white ceramics or glass.
Which industries use this grade as a filler?
Paints and coatings, rubber compounding, PVC and plastics, adhesives and sealants, epoxy and resin flooring, putty and caulk, and agrochemical carrier applications.
What documentation comes with shipments?
An XRF-tested Certificate of Analysis reporting SiO2, Fe2O3, whiteness and particle size distribution on every batch.
What is the minimum order quantity?
Standard orders start at one 20ft FCL, with smaller trial quantities available for first-time buyers.
Request 400-500 Mesh Specification Sheet & Sample
Get the current CoA template, FOB/CIF pricing and a trial sample for your filler formulation.
Request Quote & Sampleindianfeldspar.com
Search
Recent Posts
Leave a Comment