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White Fused Alumina (WFA) is a premium synthetic abrasive with 99% Al2O3 purity, ideal for high-performance grinding, refractory linings, and precision polishing. Its exceptional hardness (Mohs 9), thermal resistance (1900°C), and chemical stability ensure efficiency across industries. Available in grains, powders, and microgrits compliant with FEPA/JIS standards.
What is White Fused Alumina (WFA)?
White Fused Alumina (WFA) is a high-purity synthetic abrasive manufactured from calcined alumina. With 99% aluminum oxide (Al2O3) content and minimal impurities (Fe2O3 ≤0.1%, Na2O ≤0.35%), our Grade A WFA delivers superior cutting performance, thermal stability, and chemical inertness.
Technical Specifications
| Property | Value |
|---|---|
| Al2O3 Content | ≥99% (Segment/F Grain) |
| Fe2O3 | ≤0.1% |
| Na2O | ≤0.30% |
| Mohs Hardness | 9.0 |
| Melting Point | 2250°C |
| Working Temp | Up to 1900°C |
| Density | 3.95 g/cm³ (True) |
Available Forms & Sizes
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Segment Grains: 0-1mm, 1-3mm, 3-5mm, 5-8mm
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Fine Powder: 100#-0, 200#-0, 320#-0
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Grain Sand (FEPA): F12-F220
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Microgrits (W Scale): W63-W1
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FEPA Microns: F230-F2000
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JIS Standards: #240-#10000
Key Applications
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Refractories: Furnace linings, castables, fire bricks.
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Abrasive Blasting: Surface preparation, rust removal.
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Polishing: Cosmetic abrasives, gemstone finishing.
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Coated Abrasives: Sandpaper, grinding wheels.
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Ceramics: Glazes, structural ceramics, grinding media.
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Precision Tools: Diamond tool manufacturing, water stones.
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Industrial Coatings: Wear-resistant floors, epoxy composites.
Why Choose Our WFA?
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A-Grade Quality: Consistent ≥99% Al2O3 purity.
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Thermal Resilience: Withstands extreme temperatures (1900°C).
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Multi-Industry Use: From foundries to electronics polishing.
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Global Compliance: Meets FEPA, JIS, and ISO standards.
