Can I use a sander or grinder to polish quartz countertop …
I had a quartz countertop installed, however they did a poor job where it was cut. They used max 200 grit sandpaper with an angle grinder. Also they applied a sealer and now it has some kind of stains. I have an orbital sander tool and angle grinder. Can I use these like they do in order to fix it? Probably with higher grit gradually.
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