Sika Sikaflex® 291 LOT Slow Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - Black

Sikaflex® 291 LOT Slow Cure is a one-component, moisture-cured polyurethane adhesive and sealant engineered for demanding marine bonding and sealing tasks. In black, this 10.3 oz (300 ml) cartridge is ideal for boats, decks, hull joints, and other marine applications where a durable, flexible sealant and adhesive is required.

• 1-Component, moisture-cured polyurethane: Simplifies application while delivering durable, elastic bonds that cure with humidity.
• Black color; 10.3 oz (300 ml) cartridge: Ready-to-use for black-masked or color-matching installations.
• Marine-grade, non-sag formulation with long open time: Excellent for vertical joints and complex assemblies needing extra working time.
• Use above and below water line: Versatile performance for both dry-dock and submerged applications.
• Resists salt water and weathering: Maintains adhesion and flexibility in harsh marine environments.
• Paintable and sandable for a seamless finish: Finishes to match surrounding surfaces without sacrificing performance.
• High-strength bond with permanent elasticity: Bonds firmly while allowing for normal motion and vibration.
• NSF approved for potable water and USDA approved for incidental food contact: Suitable for environments with hygiene requirements.
• Slow Cure profile for extended working time: Provides extra working time for precise alignment, even in humid climates or complex assemblies.

With its moisture-cured, non-sag formulation, Sikaflex® 291 LOT Slow Cure remains elastic after cure to absorb movement and vibration, helping seals and bonds endure over time. Its ability to perform above and below the water line makes it a versatile choice for boats, decks, hull joints, and other marine applications, while paintability and sandability allow a seamless finish that blends with surrounding surfaces. The product’s marine-grade formulation withstands salt water and weathering, and approvals for potable water and incidental food contact offer additional confidence for hygiene-sensitive environments. Note: California Prop 65 warning applies.