Loose Silicon Carbide Powder


FEPA Grit: 60


Abrasive Silicon carbide


Silicon Carbide Powder is a perfect tool for flattening and lapping synthetic and natural stones. Choose one of 9 available grit: F 60, F 120, F 220, F 320, F 400, F 600, F 800, F 1200 and F 2000. One bottle contains up to 8 oz of SiC powder (see specs).

F 60
Flattening of coarse stones (60 - 150 grit)
F 120
Flattening of any stones (180 grit and above)
F 220
Lapping of medium waterstones (400 - 800 grit)
F 320
Lapping of fine waterstones (800 - 2000 grit)
F 400
Lapping of fine/extra-fine waterstones (1500 - 4000 grit)
F 600
Lapping of ultra-fine waterstones (6000 grit and above), natural stones, alumina ceramic
F 800
Lapping and honing of natural stones and alumina ceramic
F 1200/2000
Honing of natural stones


  • Net weight (+/- 10 g):
    F60 - 220 gram (7.8 oz)
    F120 - 220 gram (7.8 oz)
    F220 - 190 gram (6.7 oz)
    F320 - 220 gram (7.8 oz)
    F400 - 195 gram (6.9 oz)
    F600 - 170 gram (6 oz)
    F800 - 170 gram (6 oz)
    F1200 - 100 gram (3.5 oz)
    F2000 - 100 gram (3.5 oz)

How to use

Warning! Respirator required to work with F800, F1200 and F2000 silicon carbide powder. Inhalation can cause illness.

The SiC powder should always be coarser than a sharpening stone.

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.