One-part all-purpose polyurethane that reacts with moisture to deliver flexible bonds with good adhesion to wood, fiberglass, gelcoat, plastics, and metals. Paintable and sandable. Forms watertight, weather-resistant seals on joints and boat hardware above and below the waterline. Not recommended for sealing wood decks.
4200 is approximately 1/2 the strength of 3M 5200, which allows for disassembly of parts.

Color: White or Black. 3 oz or 10 oz cartridge

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