Black Quartzite problem Tony Deluna 01 Mar 2018 16:17 EST
Hi Pro’s, well I did this countertop yesterday. I diamond brushed the hell out of it but I couldn’t get these spots to completely disappear.  But they faded significantly and the customer was happy with the results.
I used uniblack and Ager. It made it fade significantly and it looked great when I left. but now it looks like it dried out. Theirs even a ring left by the paper towel dispenser on the right.

Any ideas beyond reapplication of uniblack and Ager?

Tony DeLuna
925-625-9625
www.PatriotStoneRestoration.com