UltraCare Sulfamic Acid Crystals is a granular powder that dissolves in water and produces a cleaner and problem-solver for nonporous, acid-resistant tile and natural stone. It removes cured cement grout haze, mortar residue, rust stains and mineral deposits such as efflorescence. FEATURES AND BENEFITS• Removes cement grout stains and mortar haze film residue • Removes efflorescence, rust stains and other mineral deposits• For interior and exterior applications• Fast-acting and easy to…