Got to quote on a terracotta floor tomorrow am. Our experience so far is that it keeps drinking sealer up for as many coats as you want to throw at it. I think we did about 8 coats on the last one - 6 of sealers choice gold and 2 of mirra matte.
Ideally we want a non-enhancing impregnator, but one that will seal to the point of water beading, and negligible darkening when wetted, in 1 coat (I know that's daft, but I did say "ideally") - or as few as possible.
Ideas?