4000 UV Fast Cure Polyurethane/Adhesive Sealant

4000 UV is a one-component, medium-strength, moisture-curing, gap-filling sealant that cures to form a firm, flexible and waterproof seal on aluminum, wood, gel coat and fiberglass. Ideal for above and below waterline applications where aesthetic appeal is a priority. Seals between mechanically fastened joints on wood, fiberglass, metal and most plastics. Applications include sealing deck to hull joints, thru-hull fittings, window and door frames, etc. It is also paintable and offers excellent UV resistance.