Pavetuf PTCLSA5L 5L Salt Eraser - Pavetuf Salt Eraser is an advanced salt neutralizing formulation that removes salt deposits (efflorescence) from the surface of your paved area or brickwork. It is suitable for use on natural stone including sandstone, limestone and granite. It can also be used on all types of concrete and brickwork. Not only does it remove the salts from the surface, it penetrates deep into the paved area or brickwork, helping to draw efflorescence up to the surface.