Hello all,
I just tried Klenztone #4 on my first limestone floor. Wow is all I can say! The pin holes even came clean. It was a tumbled limestone that looked horrible but it actually looks new now. If you haven't tried it you should give it a shot.

Tim Lesnar
Classic Marble Restoration
Blaine, MN
763-784-2483 office
612-250-0041 cell