Wollastonite Powder
Acicular Calcium Silicate · CaSiO₃
Brilliant white acicular mineral — the asbestos substitute of choice for plastics, construction, coatings, ceramics, metallurgy and friction applications.
Overview
We are one of the most eminent manufacturers, suppliers and exporters of Wollastonite Powder from Gujarat, India, offering the finest quality at cost-effective rates — processed hygienically, pure and unadulterated.
Wollastonite is an industrial mineral comprised chemically of calcium, silicon and oxygen. Its molecular formula is CaSiO₃, with a theoretical composition of 48.28% CaO and 51.72% SiO₂.
Its needle-like (acicular) crystal structure gives composites remarkable durability, fire resistance and dimensional stability — making it the leading substitute for asbestos across industries.
Key Features
- Brilliant white, pearly lustre
- Acicular (needle-like) crystal structure
- Brightness 78–92%
- Refractive index 1.627, specific gravity 2.9
- Low sintering temperature (991–1196°C)
- Natural asbestos substitute
Applications
Where this mineral goes to work.
Plastics
Improves durability, electrical insulation, fire resistance and dimensional stability; finer grades add scratch and impact resistance.
Construction
Asbestos substitute in fire-resistant boards, roof tiles, insulation, panels and sidings; improves flexural and impact strength.
Paints & Coatings
Flattening agent for uniform dry film; interlocking particles improve toughness, tint retention, scrub and weather resistance; corrosion-resistant primers.
Ceramics
Glazes, bodies, enamels, frits, fluxes and sanitary-ware — low sintering temperature comparable to natural frits.
Metallurgy
Casting powders and welding fluxes — ready fusibility, good insulation, low viscosity for continuous steel casting.
Friction
Reinforcing additive for truck blocks, drum linings, disc pads — improved friction stability, noise reduction, lower cost.
Gallery
Wollastonite Powder in the plant.
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