3M Marine Adhesive Sealant Fast Cure 4200 is a tough, semi-permanent, flexible polyurethane for bonding and sealing. It is ideal for use on wood, glass, paint, gelcoat and fiberglass as well as many metals and plastics. It b...

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Product Review

3M Marine Adhesive Sealant Fast Cure 4200 is a tough, semi-permanent, flexible polyurethane for bonding and sealing. It is ideal for use on wood, glass, paint, gelcoat and fiberglass as well as many metals and plastics. It becomes tack-free in as little as 50 to 90 minutes, and typically cures in as little as 24 hours – allowing you to get back out on the water. The sealant applies right from the container with no metering or mixing required and cures to form a firm, flexible, waterproof seal, yet this medium-strength adhesive allows you to disassemble parts after long-term use without damage. It is recommended for use on joints, hardware attachment, portholes and other areas which are shielded from the sun. Tough and flexible, it dissipates stress caused by vibration and shock, and won’t crack under dynamic force. It resists saltwater, wind, weather and temperature extremes for long periods of worry-free enjoyment on the water.

  • HIGH-PERFORMANCE SEALING: Form weather-resistant, malleable bonds between dissimilar surfaces and a wide range of marine substrates like wood, fiberglass, and metal
  • MULTI-PURPOSE MARINE SEALANT: This medium-strength marine sealant bonds portholes, deck fittings, rub rails, screw holes, and stanchion supports while still allowing disassembly
  • FAST CURING: Formulated for fast cure and rapid results, its tack-free in 1 hour and typically cures in 24 hours
  • READY FOR WET CONDITIONS: Excels in applications both above and below the water line
  • FLEXIBLE BONDS: Durable elastomeric adhesion maintains joint movement and withstands stress caused by shock, vibration, swelling and shrinking
  • For industrial/occupational use only. Not for consumer sale or use

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