Spray tile cleaner on glazed ceramic tile, grout, tubs, fiberglass, shower doors, vinyl shower curtains, sinks and no-wax floors. After mildew stains disappear, rinse well. Rinse immediately after use on rubber, vinyl and items such as shower curtains. To disinfect and kill mold and mildew on hard, nonporous surfaces, spray surface until thoroughly wet, let stand 5 minutes and rinse. Do not use on wood or painted surfaces, or on fabric. Avoid prolonged contact with metal and old porcelain.