Sikaflex; 291 Fast Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - BlackSikaflex;-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 waterFast strength build-upPaintable and sandableExcellent bondNSF approved for potable water (black and white only)USDA approved for incidental food contactWARNING: 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.