Bostik 920 FS Fast Set Marine Adhesive and Sealant


Manufacturer Part #: A25615

Product Highlights

  • Type: Adhesive Sealant
  • Brand: Bostik
  • Set Speed: Fast
  • Bonds: Wood, Metal, Plastic, FRP
  • Application: Marine

Bostik 920 FS Fast Set Marine Adhesive and Sealant Overview

Bostik Marine 920 FS (Fast Set) is a one-part, gun-grade urethane sealant/adhesive that moisture cures to a tough, resilient seal with excellent tear and abrasion resistance. It adheres to most marine substrates, including wood, metal, FRP, and most plastics. Offering fast curing, it can be used as an adhesive or sealant. Ideal for marine applications above or below the waterline, it seals hardware around windows and doors, deck-to-hull assemblies, hull seams, keel joints, and undermoldings.

Please note this product is not designed as a glazing sealant in which the adhesive bond to glass is exposed to sunlight and appreciable amounts of ultraviolet radiation and should not be used when the temperature is below 40°F (4.4°C).


  • Fast Set Marine Grade Adhesive/Sealant
  • High Elongation
  • Above and Below Water Line Use
  • Extremely Tough


  • Series: Bostik 920 FS
  • Cartridge Size: 300 ml (10.1 fl oz)
  • Basic Material: Polyurethane
  • Curing Method: Moisture
  • Tack Free Time: 90 min.
  • Tool/Work Life: 70 min.
  • Curing Time @ 77°F: 1.5 - 3 Days
  • Shore A Hardness: 37
  • Tensile Stress at Break: 267 PSI
  • Elongation at Break: 850%
  • Joint Movement Capability: ±25%
  • Temperature Resistance: -40°F to 180°F (-40°C to 82°C)
  • UV Resistance: Good
  • Ozone Resistance: Excellent
  • Shelf Life: 9 Months - Stored at or Below 80°F (27°C)

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