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Seraphim ~

Nope - no more than wetndri paper would which is the same abrasive. You use it with water, rubbing in large circles & figure 8's. The paste breaks down to a slurry. The glass takes...

Seems all the answers are here.

I'll just add I got my glass base out of an oven door. Nice hard tempered glass.
Also I use fine,valve grinding paste for lapping. Don't know if my Chinese stone...