3M 7000120497 Marine Adhesive Sealant Fast Cure 4200FC Black 10oz Cartridge

3M Marine Adhesive Sealant Fast Cure 4200FC is a one-part, moisture-curing polyurethane adhesive sealant designed specifically for marine applications requiring fast turnaround times. This professional-grade black sealant combines strong adhesion with flexible, watertight sealing performance for both above and below waterline applications.

Key Features:

• Fast curing formula - handles faster than standard 4200, allowing quicker project completion
• Strong, flexible bond remains elastic after curing to accommodate joint movement and vibration
• Excellent adhesion to fiberglass, wood, gelcoat, aluminum, and other marine substrates
• 100% waterproof seal suitable for above and below waterline applications
• UV and saltwater resistant for long-lasting durability in harsh marine environments
• Paintable after curing for seamless finishing
• Low odor formula for more comfortable application in enclosed spaces

Ideal for bonding and sealing deck hardware, through-hull fittings, portlights, hatches, rubrails, and other marine components. The 10 fl oz (295 mL) cartridge fits standard caulking guns for easy, controlled dispensing. Trusted by boat builders, marine professionals, and DIY enthusiasts for reliable, long-lasting results in demanding marine conditions.