Restore sharpening stones to their original flatness and keep them in prime condition
Purpose
Restore flatness
Through use, your Sharpening Stones will show signs of wear. They may lose their flatness after a time. The Silicon carbide Hapstone leveling is used to restore your stones to their original flatness, keeping them in prime condition.
Options
Multiple fractions available
You can choose the fraction that matches your stone and application, and also select a mirror as an additional option.
Use
Works with water suspension
Sprinkle the silicon carbide on glass or a mirror, add a little water, and rub the stone against the abrasive grit to level the surface again.
Guidance
Choose coarser than the stone
The SiC powder should always be coarser than a sharpening stone.
How to use
Level with control
Take a slate pencil and put crosshatch pattern to the surface of the stone. Never skip this step. Your goal is to get rid of crosshatch completely. If you notice left-over of pattern somewhere, it means geometry is not flat yet.
Always add water to make a suspension, not dry SiC. Try to use glass area evenly. Your glass will wear over time because SiC affects glass too.
For hard stones, coarse SiC will be the major time consumer. When SiC disintegrates, put another pinch (refresh). If there is too much suspension, clean your glass. Use a straight edge or metal ruler to check flatness. If you are not sure, make crosshatch pattern again.
The abrasive hygiene should be a priority. Don't let single coarse particle to remain in fine lapping.
F80
Silicon carbide 80 grit
(200/160 µm)
Flattening of very coarse stones (60 - 150 grit)
F120
Silicon carbide 120 grit
(125/100 µm)
Flattening of any stones (180 grit and above)
F280
Silicon carbide 280 grit
(60/40 µm)
Lapping of medium waterstones (400 - 1000 grit)
F500
Silicon carbide 500 grit
(14/10 µm)
Lapping of fine waterstones (2000 grit and above), natural stones, alumina ceramic
F1000
Silicon carbide 1000 grit
(5/3 µm)
Lapping and honing of ultra-fine natural stones and sintered alumina ceramic
Warning! Respirator required to work with F1000 silicon carbide powder. Inhalation can cause illness.
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Customer Reviews
Overall rating: 5.0 / 5 from 16 reviews.
Silicon carbide powder Hapstone for leveling stones 100g (F120, 125/100 µm)
No complaints at all - works perfectly. After leveling, my Boride Ruby F150 and other stones of similar grit are in excellent condition. The surface comes out very even and consistent.
Store owner replied:
It's great to know the silicon carbide powder gave you such consistent leveling results, Vadims! Thank you for the detailed review—we're glad it helped restore your Boride Ruby and other stones to excellent condition. Happy sharpening!
Nothing much to say - the powder is great if you know how to use it. It flattens stones well, you just need to control the process.
Store owner replied:
Your kind words mean a lot to our team — thank you.
With 80 and 120 grit, I flattening stones 60 and 160. 285, 650, 1100 and 3000 with 220 grit. I used 400, 600 and 1000 grit but it didn't work. The stones are flattened very nicely. I am very satisfied with the product. Good job Hapstone.
