I have used the mapei anti mound grout, on tumbled marble. it's 5kg to 1 litre of water. But it seems to thick, there was no way I could get it all on the tiles and wipe it down before it starts going off in the bucket should it be a bit thinner? And I gather I could make up smaller Batches but would need a set of scales?
Thanks. For any tips.
Thanks. For any tips.