QUAD Invisible is ideal for sealing around exterior windows and doors, fiber-cement and vinyl siding, PVC trim, roofing and gutters. Bonds without a primer to most common substrates like cedar, painted or stained woods, fiberglass, vinyl, coated aluminum, steel, metal, brick, stone and concrete. For Best Results: Do not use for sealing expansion joints, including butt joints, not compatible with polystyrene foams and polypropylene or polyethylene plastics. Do not use in applications requiring continuous water immersion. Do not use as a traffic bearing sealant, on log homes or inside occupied structures. For best results, should not be used in applications less than ” in depth in order to maintain the integrity of the sealant. Do not use to fill nail holes. For joints deeper than 3/8” (9.5 mm), a backing material should be used. Tooling, feathering or smearing of the sealant is not necessary or recommended.