Sika 90923 Sikaflex 291 Marine Polyurethane Adhesive Sealant Black 10.3oz

Sikaflex 291 is a premium one-component polyurethane-based adhesive and sealant specifically engineered for marine applications. This fast-curing, low-viscosity formula creates a medium-modulus, flexible bond that withstands the harsh marine environment including constant exposure to water, salt, and UV rays.

Key Features:

• Single-component formula requires no mixing—ready to use straight from the cartridge
• Fast cure time minimizes downtime for repairs and installations
• Low viscosity allows easy application and excellent tooling characteristics
• Medium modulus provides optimal balance between strength and flexibility
• Excellent adhesion to a wide variety of marine substrates including fiberglass, wood, metals, and many plastics
• Superior resistance to saltwater, fresh water, UV radiation, and weathering
• Maintains elasticity through temperature extremes and joint movement
• Black color provides clean, professional appearance

Common Applications:

• Sealing and bonding deck hardware and fittings
• Through-hull fittings and port lights
• Hatch seals and ventilators
• Windshield and window installations
• General above and below waterline sealing
• Marine equipment mounting

Sikaflex 291 is the trusted choice of boat builders, marine fabricators, and boat owners worldwide for reliable, long-lasting seals and bonds. The 10.3 oz cartridge fits standard caulking guns for convenient application.