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 Defender Seal

Sika Sikaflex-291 Fast Cure Marine Adhesive and Sealant

  • All-Purpose Marine Sealant Useful for Applications Where Speed is Important
  • Material: One-Part Polyurethane, Use: Above or Below Waterline
  • Select Color, Container: 300 ml Cartridge, Cure Time: 1-9 Days*
  • Item #: 
    Model #: 
    Multiple Models Available
    Shipping Weight: 
    1.00 Lbs.
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      *In Stock!*
    Our Price: $14.99
      *In Stock!*
    Our Price: $14.99
    Click the "More Info" button above for specific information about that product.

    Sika® Sikaflex®-291 Fast Cure Marine Adhesive and Sealant


    • General all-purpose sealant for use above or below waterline
    • Fast tack and cure times – especially useful for quick-turnaround jobs
    • Excellent adhesion to gelcoat, fiberglass, metal and wood
    • May be used for light duty bonding
    • Can be squeezed or brushed into place
    • Sandable and paintable
    • Stable, resists salt water
    • USDA approved for incidental food contact
    • NFS approved for potable water


    • Material: One-part polyurethane
    • Color: Specify black or white
    • Container: 300 ml cartridge
    • Open Time: 45 min.*
    • Tack-Free Time: 60 min.*
    • Cure Time: 1 - 9 days*
    • Tensile Strength: 260 psi

    For further details see Data Sheet for this product

    *Open, tack-free and cure times are subject to atmospheric conditions.

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    ArrowWorthy Caulking Gun Pro
    Item #: 756275
  • Type: Skeleton Frame, Rod Type: Smooth
  • Includes Hex Rod Spring
  • Size: 1 Quart (Contractor Size Tubes)
    Model #:
    6004 P
    Star brite Caulk-a-Way Tool
    Item #: 751164
  • Perfect Tool to Help Remove Caulking with Ease
  • Suitable for Removing Silicone, Latex and Acrylic Caulking
  • Removes Caulk from of those Hard to Reach Corners
    Model #:
    Star brite Caulk Rite Tool
    Item #: 751162
  • Perfect Tool to Help Apply the Perfect Bead of Caulking
  • Designed for all Types of Sealants and Caulking
  • No Mess, No Edge Marks, No Waste
    Model #:
    Western Pacific Trading Disposable Latex Gloves
    Item #: 756713
  • Size: Large, Gloves Fit Either Hand, Inside Coating: Light Powder
  • Function: Protects Against Painting, Cleaning, Detergents and Mild Chemicals
  • Sold in Package of (10)
    Model #:
    ScrapeRite General Purpose Plastic Razor Blades
    Item #: 756228
  • Color: Orange, Application: General Purpose Blades for Delicate Surfaces*
  • Works with Appropriate Solvents for the Surface Being Cleaned
  • Package: (25) Blade Pack with Holder
    Model #:

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