A simple-to-use, spray applied invisible barrier that protects against the harmful affects of moisture damage. When applied properly, Moldex Protectant provides a mold and algae-resistant film. Use on patio furniture, awnings, shower curtains, walls, tile, grout, previously painted surfaces, window frames, sealed wood, drywall, siding, shingles, tarps, tents, canvas, boat and R.V. tops, fabric, vinyl, and much more. Available in 32 oz. trigger spray and convenience hose end sprayer for outdoor surfaces.