SB 2375 Concrete and Grout Remover is an example of a new generation of cleaners designed for the removal of thin to moderately heavy deposits of concrete, mortar and grout without the use of hydrochloric acid.Up to ½ inch of cementitious material has been successfully removed from metal surfaces. Unlike traditional new masonry cleaners based on hydrochloric acid that attacks the surface of the cementitious deposit, SB 2375 is designed to penetrate the substrate and attack/weaken the bond of the cementitious ma