Re: Q-Rock Tiles - Grout problem | | the staining on these tiles is usually down to the wax protectiver coating put on these tiles by the manufacturer, fila recommend using residue remover extra strong after initial fixing but before groutn=ing to clean this off and also strongly advise using polished porcelain sealer to seal these tiles even though it is not 100% necessary it will apparently make them a lot easier to keep clean in the future |