Sikaflex 291 Fast Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - WhiteSikaflex-291 is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. Used by many boat builders, its fast cure time makes it ideal for applications where speed is important.Uses:. General all-purpose, marine adhesive and sealant, which may be used for light duty bonding. Sikaflex-291 has excellent adhesion to gelcoat, fiberglass, metal and wood that can be gunned or brushed into place.Characteristics & Advantages:. Use above and below water lineResists salt water. Fast strength build-up. Paintable and sandable. Excellent bond. NSF approved for potable water (black and white only). USDA approved for incidental food contact. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.