Sika LOT Marine Polyurethane Adhesive Sealant Caulks & Sealants

Sika Sikaflex-291 LOT is a one-component, marine-grade polyurethane adhesive and sealant. It is made for boat building, repair and maintenance. This moisture-curing, non-sag marine caulk has a long open time. That gives you extra working time in humid conditions or on jobs that need careful positioning. It stays permanently elastic after curing.

Key Features:

• Marine-grade polyurethane: One-component formula that cures on exposure to atmospheric moisture
• Above and below the waterline: Suitable for deck, hull, fitting and interior sealing and bonding
• Strong, flexible bond: Bonds to many boat-building materials, including fiberglass, gelcoat, wood, metal and primed or painted surfaces
• Water resistant: Resists fresh water and salt water, and also resists diluted acids and caustic solutions
• Non-sag and non-corrosive: Stays in place in joints and seams
• Paintable and sandable: Can be overpainted and sanded after curing
• Approvals: Select versions are NSF registered, and some carry NSF potable water or USDA incidental food contact approvals
• Easy application: Applies with a manual, pneumatic or electric caulking gun

For best results, apply to clean, dry surfaces. Sikaflex-291 LOT is a trusted general-purpose marine sealant for builders, boat owners and repair professionals. Use it for bedding hardware, sealing joints and seams, and light-duty bonding.