Sikaflex 291 LOT Slow Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - BlackSikaflex-291 LOT is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. It is a moisture cured, non-sag system designed with a long open time for jobs that require more time.Uses:. General all-purpose, high strength marine sealant, which may be used for light duty bonding with long open time capability for humid climates or jobs requiring more time that remain permanently elastic.Characteristics & Advantages:. Use above and below water line. Resists salt water. Paintable and sandable. Excellent bond. NSF approved for potable water. 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.