Removes black mold plaque without scraping or scrubbing. For use on window frames, plastic shower curtains, bathroom tiles, tiles, enamel and concrete. Application: Spray on the surface, after 3-4 minutes. wipe off with a damp sponge and rinse with water. Repeat if necessary. Avoid contact with rubber, vinyl, damaged varnish, aluminum, copper, brass, chrome, gold-plated surfaces, varnished wood, damaged enamel.