KTH 913 1K Acrylic is a 100% acrylic solvent formulation with added antifungul/alge for treatment of slates, bricks, quarry or porous tiles, natural stone, cementitious substrate etc against staining, efflorescence, scratching, fungus and algae. It can enhance the colour of material giving the surface a fine lustrous finish. Suitable apply on exterior and interior usage on concrete, wood and metal.