The TIMCO Grout Cleaner is a powerful cleaning agent formulated for removing dirt, grime and black damp stains from grout lines. This fast-acting, ready-to-use spray contains buffing and deep cleaning properties to leave grout looking as good as new. The acid-free formula is safe for coloured grout and suitable for use on all types of grout between wall tiles, floor tiles and brick, both interior and exterior applications.