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Question on lapping stones

Fri Jul 26, 2013 4:08 am

Is it okay to use coarse grit sandpaper for lapping stones?

Re: Question on lapping stones

Fri Jul 26, 2013 4:17 am

Mesh drywall sandpaper would be a even better choice.

Re: Question on lapping stones

Fri Jul 26, 2013 4:23 am

You're talking about that 3m sanding screen right?

Re: Question on lapping stones

Fri Jul 26, 2013 5:07 am

Sandpaper is great, but it can shed abrasive which can get lodged in your stone. Make sure to check the stone for this when you are done.

Re: Question on lapping stones

Fri Jul 26, 2013 5:24 am

Alright thanks :)

Re: Question on lapping stones

Fri Jul 26, 2013 6:51 am

I've lapped stones on concrete, cinder blocks, against other stones, with sandpaper, silicon carbide powder on a lapping plate and about any other way you can think of. Never once did I get abrasive lodged in the stone.

Re: Question on lapping stones

Fri Jul 26, 2013 2:31 pm

How coarse are we talking? I wouldn't go using no 36 grit sandpaper to flatten a stone.....it'll leave to big of gouges in the stone.

I'd use something like 120 as the coarsest.

Re: Question on lapping stones

Tue Jul 30, 2013 12:15 am

Lets say 200 grit

Re: Question on lapping stones

Tue Jul 30, 2013 2:12 pm

Yes, that's fine.
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