Description
Reviews
| Brand | - |
| Category | Industrial Oils, Adhesives, Chemicals & Lab Supplies / Polishing Compounds |
| Origin | - |
| Material | High-Purity Aluminum Oxide (Al2O3) |
| Grit Size Options | W0.3 and W0.5 microns |
| Finish Type | Metallographic Mirror Finish |
| Primary Applications | Jade polishing, Diamond finishing, Metallography |
| Hardness | 9 on Mohs Scale |
| Particle Shape | Uniform Sub-micron Particles |
| Purity Level | 99.9% Minimum |
| Compatibility | Suitable for water or oil-based suspensions |
| Package Weight | 100 grams per jar |
| Country of Origin | Manufactured in ISO Certified Facility |
Anonymous
Mar 24, 2026
Rating: 5/5
Consistent results
We have switched to this brand for our lab's daily polishing needs. The W0.3 grade removes previous grinding marks efficiently and leaves a flawless surface for microscopy.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for metallographic samples
This powder delivers an exceptional mirror finish on our steel samples. The particle size distribution is very consistent, resulting in scratch-free surfaces every time.
Anonymous
Mar 11, 2026
Rating: 5/5
Great for jade carving
I use the W0.5 grade for the final polishing stage of my jade pieces. It brings out a brilliant luster without being too aggressive. Highly recommended for lapidary work.
Anonymous
Mar 06, 2026
Rating: 5/5
Excellent for hard materials
Used this on sapphire substrates and it performed beautifully. No clumping issues when mixed with distilled water. A staple in my workshop now.
Anonymous
Mar 03, 2026
Rating: 4/5
Good value for precision work
Works well for diamond tool sharpening. The only reason I didn't give 5 stars is that the packaging could be more secure to prevent spills, but the product quality itself is top-notch.
Anonymous
Mar 03, 2026
Rating: 4/5
Fine powder, great finish
The texture is extremely fine as advertised. It takes a bit of time to polish larger areas, but the resulting shine on gemstones is worth the effort.
Q: Is this safe to use on soft metals like gold?
A: While effective, aluminum oxide is quite hard (9 Mohs). For very soft metals like pure gold, we recommend testing on a small area first or using a softer polishing compound to avoid potential micro-scratching.
Q: Can this powder be used with ultrasonic cleaners?
A: Yes, this aluminum oxide powder can be suspended in liquids used within ultrasonic cleaning setups for specialized polishing applications, provided the concentration is adjusted correctly.
Q: What is the difference between W0.3 and W0.5?
A: The number refers to the average particle size in microns. W0.3 is finer than W0.5 and is typically used for the final polishing step to achieve a higher degree of reflectivity, while W0.5 is excellent for intermediate fine polishing.
Q: Do you offer bulk packaging for industrial use?
A: Yes, we offer bulk quantities for industrial and laboratory settings. Please contact our sales team directly through the 'Contact Us' page for custom pricing and shipping options.
Q: How should I store the remaining powder after opening?
A: Please keep the jar tightly sealed in a cool, dry place away from direct sunlight. Moisture can cause the fine powder to clump, which affects its polishing performance.
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