Cast Basalt Powder, also known as basalt powder or greenstone powder, is a high-performance material derived from finely milled crystallized cast basalt. Produced through precision crushing and ball milling, it forms a fine light-gray powder with exceptional acid and alkali resistance.

Chemical Composition

• Silicon Dioxide (SiO₂)
• Aluminum Oxide (Al₂O₃)
• Trace oxides: Iron Oxide, Calcium Oxide, Titanium Dioxide

Fineness ranges from 120 mesh to 300 mesh (up to 500 mesh on demand) with uniform particle distribution.

Features

• High wear resistance—outperforms steel and manganese steel
• Exceptional corrosion resistance—10x better than acid-resistant cement
• Uniform particle size for consistent mixing
• Low water absorption for dimensional stability
• Eco-friendly and non-toxic—ideal substitute for asbestos

Applications

• Wear-resistant flooring and coatings
• Liners for pipes, chutes, and hoppers
• Refractory castables and corrosion-resistant adhesives
• Corrosion-resistant concrete in industrial facilities

Refractory Castable Formulations

Proper blending is key. Acid resistance by weight:

• Cast basalt: 98%
• Silica stone: >97%
• Clay clinker: 92–97%
• Talc: 92–96%
• Andesite: >94%

Waste silica bricks often replace raw silica to counteract volume changes during heat exposure.

Basalt Fiber Powder

• Size: Diameter 9–18μm, Length 30–50μm
• Mesh: Typically 400 mesh
• Temperature Resistance: Up to 1000°C

Applications: Brake pads, grinding wheels, friction plates, wear-resistant bearings and pipes. Basalt fiber powder is superior to asbestos in resistance and safety.

Cast Stone Paste & Mortar

Mixed with water, basalt powder forms paste-like cements used as adhesives and fillers.

Can be combined with cast basalt sand to create corrosion-resistant concrete. Typical binder types include:

• Sodium silicate clay
• Chlorinated resin clay
• Furan resin compounds

Common mesh range: 80–500 mesh, tailored to application requirements.