You can use FLO Hydrochloric Acid (HCL) in cleaning WC, washbasins, ceramic surfaces i.e. while cleaning hard surfaces. Please close the cap of the bottle after use and keep away from the reach of the children.
Should there be too much rust, dirt or fungus on the surface that you are going to apply FLO, please apply FLO and wait at least two minutes and rub it afterwards. In addition FLO can be applied on surfaces on which residues of lime, cement or concrete are visible.