SB 2377 is one of our newer cleaners designed for the removal of thin to moderately heavy deposits of concrete, mortar and grout without the corrosiveness of using muriatic and other acids. Based on a highly concentrated blend of surfactants and salts, SB 2377 has been used to remove ½ inch of cementitious materials from masonry and metal surfaces. SB 2377 is significantly less corrosive to metal surfaces than mineral acids, therefore enough material to remove stubborn deposits can be used without worries of da