Mipa PU 420 is a single-component sealant for permanently sealing joints, seams, grooves, and overlaps. Easy to apply, adheres to metal, galvanized sheets, primers, and old paints, permanently elastic. Suitable for sealing welded seams and other joints on vehicles and machinery. Sealing front and rear bumpers as well as overlap seams in trunks, passenger compartments, wheel arches, etc. Excellent adhesion, easy to spread, permanently elastic, can be painted over with 1K and 2K paint systems, good stability.