Sikaflex 291 One Component Fast Cure Marine Adhesive and Sealant, 300ml, White

Sika Corporation
Item #
Mfr. Model # 90919

Sikaflex 291 One Component Fast Cure Marine Adhesive and Sealant, 300ml, White

Sikaflex®-291 is a 1-component, marine-grade polyurethane elastomeric adhesive, and sealant. Used by many boat builders, its fast cure time makes it ideal for applications where speed is important.  

General all-purpose, marine adhesive and sealant, which may be used for light-duty bonding.  Sikaflex®-291  has excellent adhesion to gel coat, fiberglass, metal, and wood that can be gunned or brushed into place.

Characteristics and Advantages:

  • Use above and below water lineResists salt water
  • Fast strength build-up
  • Paintable and sandable
  • Excellent bond
  • NSF approved for potable water (black and white only)
  • USDA approved for incidental food contact


  • Bonds well to a wide variety of substrates
  • Good aging and weathering resistance
  • Elastic
  • Low odor
  • Non-corrosive
  • Can be over painted
  • Can be sanded
  • Listed under NSF ? Proprietary Substances and Nonfood Compounds (black and white)
Product Details
Specification Description
# of Components: Single Component
Adhesive/Glue Type: Caulks & Sealants
Brand Name: Sika Corporation
Brand Part Number: 90919
Chemical Base: Polyurethane
Color: White
Cure Mechanism: Moisture
Elongation: 500%
Model: Sikaflex 291
Operating Temperature: -58° to 194°F
Package Type: Cartridge
Paintable: Yes
Primary Application: Marine
Shelf Life: 365 days
Shore Hardness: 40A
Size: 300 ml
Specifications Met: NSF Proprietary Substances and Nonfood Compounds
Tear/Shear Strength: 35 pli
Temperature Rating: Standard (Less Than 200°F)
Tensile Strength: 260 psi
Working/Tack/Skin Time: 1 Hour
$8.99 / each
  • 48+ for $7.64 / each
  • 480+ for $7.20 / each

1 units in stock. Estimated to ship Wed. Jun 19 Need more? Estimated to ship Tue. Jul 02.