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Description
Sika Sikaflex® 291 Fast Cure Adhesive & Sealant in White is a one-component, marine-grade polyurethane adhesive and sealant designed for speed and reliability on boats and watercraft. It’s ideal for light-duty bonding and general all-purpose marine sealing where a quick, durable seal matters.
- Type: One-component, marine-grade polyurethane adhesive and sealant
- Fast Cure: Fast cure times that support speed-critical bonding and sealing
- Compatibility: Excellent adhesion to gelcoat, fiberglass, metal and wood
- Application: Gunnable or brushable; can be gunned or brushed into place
- Waterline Use: Use above and below the water line with resistance to salt water
- Finish: Paintable and sandable for easy finishing
- Color / Size: White; 10.3 oz (300 ml) cartridge
- Safety & Compliance: NSF approved for potable water and USDA approved for incidental food contact
- Intended Use: Designed for light-duty bonding and general all-purpose marine sealing
With fast cure times and strong adhesion to common marine substrates like gelcoat, fiberglass, metal, and wood, Sikaflex®-291 forms a watertight seal quickly. It’s paintable and sandable, allowing for a clean, professional finish that’s easy to integrate into existing deck and hull repairs. The versatility of gunnable or brushable application, plus the option to use above or below the water line, makes it a practical choice for speed-focused marine projects. Safety-certified for potable water and incidental food contact, it’s suitable for a range of marine sealing tasks without compromising safety or performance.
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