White aluminum oxide is a highly durable and wear-resistant material often used as an anti-slip aggregate in epoxy and polyurethane floor coatings. It enhances traction, improves abrasion resistance, and maintains a bright, clean appearance due to its white color. Here’s how it’s used in floor coatings:
Benefits of White Aluminum Oxide in Floor Coatings:
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Anti-Slip Properties – Provides excellent slip resistance, making it ideal for industrial, commercial, and high-traffic areas.
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Durability – Extremely hard (Mohs hardness ~9), increasing the floor’s resistance to wear and abrasion.
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Aesthetic Appeal – Unlike darker aggregates, white aluminum oxide maintains a clean, bright look, making it suitable for food processing, healthcare, and decorative floors.
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Chemical Resistance – Works well in epoxy and polyurethane systems, offering resistance to oils, chemicals, and solvents.
- UV Stability – If used in UV-resistant coatings (like polyurethane), it helps prevent yellowing.
Introduction of White Aluminum Oxide
White fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency.
| Typical Chemical composition | |
| AL2O3 | 99.3%min |
| SiO2 | 0.06% |
| Na2O | 0.3%max |
| Fe2O3 | 0.05%max |
| CaO | 0.04%max |
| MgO | 0.01%max |
| K2O | 0.02#max |
| Typical physical properties | |
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 ℃ |
| Melting Point: | 2250 ℃ |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.75-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
Applications:
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Industrial floors (warehouses, factories)
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Commercial kitchens & food processing plants
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Hospital & laboratory floors
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Parking garages & ramps
- Decorative epoxy floors (broadcast for texture)
How to Apply:
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Base Coat – Apply epoxy or polyurethane resin as the first layer.
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Broadcast Method – While the coating is wet, evenly sprinkle white aluminum oxide (common grit sizes: 16-60 mesh for moderate texture, 80-120 mesh for finer texture).
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Top Coat – Seal with a clear epoxy or polyurethane layer to lock in the aggregate and enhance durability.
Recommended Grit Sizes:
16-36 mesh – Heavy-duty slip resistance (industrial floors).
46-60 mesh – Balanced texture (garages, kitchens).
80-120 mesh – Smoother finish (decorative floors).