Sika 90919 Sikaflex 291 Marine Polyurethane Adhesive Sealant White 10.3oz

Sika Sikaflex 291 is a professional-grade, one-component polyurethane adhesive sealant specifically engineered for marine applications. This fast-curing formula provides exceptional bonding strength and flexibility, making it ideal for sealing deck hardware, portlights, hatches, and through-hull fittings in demanding saltwater environments.

Key Features:

• Medium modulus formulation allows for natural joint movement without compromising seal integrity
• Fast cure time minimizes downtime during installations and repairs
• Low viscosity for easy application and smooth tooling
• Excellent adhesion to fiberglass, wood, aluminum, and composite materials
• UV-resistant white finish maintains appearance in harsh sun exposure
• Resistant to saltwater, weathering, and marine chemicals
• Ready-to-use 10.3 oz cartridge fits standard caulking guns

Sikaflex 291 is the go-to sealant for boat builders and marine professionals worldwide, delivering reliable, long-lasting watertight seals for general sealing applications including deck equipment, grab rails, cleats, and marine hardware installations.