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Letter 32047
Garnet is high iron. Okay for stainless
steel prep?
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I would like to know whether garnet shall be used for the surface
preparation of stainless steel substrates as garnet is having IRON
content of nearly 30%.
Girish V
Cape East - Doha, Qatar
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That depends on what the final use is. It will promote rusting,
but if it is used in a dry atmosphere, it might not be a problem.
aluminum oxide might be a better choice, but only if that surface is
not welded (vaporizes and causes bubbles or pits). Carbide grit costs
more, but typically lasts longer than all other grits, so is normally
more cost effective. I do not like garnet in sandpaper, and you did
not say how the garnet is to be used.
James Watts
- Navarre, Florida
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