Sikaflex 291
Sika Sika
  • Sikaflex 291
  • Sikaflex 291 - Small

Sikaflex 291

Sika 291 is a Professional grade Marine Adhesive/Sealant used by boat builders and yards to bond and bed boat components structurally. Fast strength build-up overnight. Use above and below the waterline. Comes with nozzle. All purpose adhesive sealant, bond to hull & structural members. Bedding Compound, light bonding, fast cure polyurethane sealant.

NOTE: SIK-291201W is a 20oz. Sausage Pack, which is NOT compatible with standard caulking guns.

IN STOCK - Available for pickup  
$269.99 / cs
List:  $336.96 / cs
You Save:  $66.97
IN STOCK - Available for pickup
$13.99 / ea
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Tech Spec Product Info User Generated Content
    Technical Specifications
  • Density: 10.3 lbs per gal
  • Tack Free Time: 60 min.
  • Rate of Cure: 1/4-in x 1/4-in bead 9 days at 40F/30% R.H.
    1/4-in x 1/4-in bead 4 days at 73F/50% R.H.
    1/4-in x 1/4-in bead 3 days at 73F/70% R.H.
    1/4-in x 1/4-in bead 1 day at 100F/75% R.H.
  • Shore A Hardness (ASTM D2240): 45-50
  • Elongation at Break (ASTM D412): >600%
  • Tensile Strength (ASTM D412): 221 PSI
  • Lap Shear Strength (ASTM D1002): 165 PSI
  • Peel Strength: 35 lbs/in on fiberglass, 25 lbs/in on gelcoat
  • Application Temperature: 40F to 110 F
  • Service Range: -40F to 190 F
  • Color: Black, White
  • Sandable, paintable and is waterproof
  • Below Water Line (yes/no): Yes
    BRAND: Sika
    Material: Polyurethane
    Rate Of Cure: Fast
    Strength: Good
    Type: Adhesive
    Usage: Bonding
    4.7 18
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