Sikaflex 291i Marine Adhesive & Sealent 70ml

Sale price£10.75
In stock

Size: 70ml


Colour: Black


Pickup available at Marine Chandlery: North Shields

Usually ready in 1 hour

Sikaflex 291i Marine Adhesive & Sealent 70ml

Sikaflex 291i Marine Adhesive & Sealent 70ml

70ml / Black

Marine Chandlery: North Shields

Pickup available, usually ready in 1 hour

Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom


Sikaflex®-291i is a premium, non-sag 1-component polyurethane sealant specifically designed for the marine industry. Renowned for its exceptional versatility and performance, this sealant cures upon exposure to atmospheric moisture and meets the stringent low spread of flame requirements set by the International Maritime Organisation (IMO). With a formulation optimised for marine conditions, Sikaflex®-291i is the go-to solution for a wide range of applications in boat building and marine construction.

Key Benefits:

  • Wheelmark Approved: Meets IMO standards for safety.
  • 1-Component Formulation: Easy to use with no mixing required.
  • Highly Elastic: Accommodates movements and vibrations.
  • Low Odour: Ideal for confined spaces.
  • Non-Corrosive: Safe for a variety of substrates.
  • Paintable: Can be finished to match surrounding surfaces.
  • Broad Adhesion Spectrum: Bonds well to many marine materials.
  • Solvent-Free: Environmentally friendly with very low VOC.
  • Low Isocyanate Content: Safer to handle and use.

Applications: Sikaflex®-291i is a multipurpose sealant suitable for numerous marine construction applications:

  • Bedding of Deck Hardware: Provides a secure, watertight seal.
  • Sealing & Bonding Above and Below the Waterline: Versatile for various locations on the vessel.
  • General Sealant: Ideal for interior and exterior use.
  • Sealing Plumbing and Sanitary Equipment: Ensures leak-free installations.
  • Sealing Joints: Effective for keel/hull, stern shaft tube, and deck-to-hull bonding.
  • Bonding Anti-Slip Decking: Perfect for materials like Marine Deck 2000.


  • Resistant to Salt Water: Ideal for marine environments.
  • Fast Strength Build-Up: Quick to achieve robust bonds.
  • Stable: Maintains performance under various conditions.
  • Paintable and Sandable: Allows for a seamless finish.
  • Excellent Bond Strength: Reliable adhesion to diverse substrates.
  • Application Versatility: Can be squeezed or brushed into place.