Saint-Gobain Norseal® Acrylic Sealing Tape AST 5020

Saint-Gobain Norseal® AST 5020 has a 2 mm white acrylic construction, providing added gap-filling capacity within the AST sealing tape line. The highly flexible acrylic foam conforms to irregular and rough surfaces, while its permanent ionomeric carrier film provides a paintable, abrasion-resistant finish once the backside liner is removed. Suitable for outdoor applications, the tape offers excellent vapor blockage and UV resistance and can be overlaid to handle wide gaps, vibration, and thermal cycling in harsh environments.

Applications include: Sealing roof seams on trucks, trailers, trains, buses, and RVs; body panel joints and trim seams; roof joints and overlaps, including on polycarbonate roofs; skylights, gutters, flashing, and ventilation ducts; HVAC ducts, air units, and pipelines; metal building joints and enclosures; boat hatches and marine windows; outdoor electrical boxes; and leak patching and waterproofing for windows, doors, sheds, and greenhouses.