Cement Grout Film Remover 1 Litre HG Product 11 How to Remove Grout Cement Film
It reacts chemically with the surface of the grout to harden it. Dosage: For glazed tiles a solution of 1:10 (with water) is sufficient. For quarry tiles, brick, stone, terracotta and (acid-resistant) slate a solution of 1:4 is used.