Chet
Member
We come across black slate that is very old and worn. On this test tile I used stripper, rinse, then acid, then rinsed again, dried it and then applied and enhancer. I was only able to get it back to gray and I know it should be black.
I uploaded a tile that was close to original one that I stripped and enhanced and the after picture after I enhanced it.
I uploaded a tile that was close to original one that I stripped and enhanced and the after picture after I enhanced it.