An overview of WEST SYSTEM epoxies


105 Resin-based Epoxy

105 Resin with 205, 206,
207 or 209 Hardener


  • A versatile low-viscosity epoxy system used for wooden boat building, composite construction and repairs that require high-strength, waterproof coating, bonding, and filling
  • Cures over a wide temperature range with one of four hardeners
  • Excellent thin-film characteristics for wetting out fabrics, penetrating porous material, and barrier coating
  • Easily modified for a wide range of working conditions and applications. Can be modified with WEST SYSTEM fillers
  • The world’s most reliable and widely used marine epoxy for boat building and boat repair



Specialty Epoxies


G/Flex Epoxy

  • An easy-to-use, toughened epoxy designed to make structural bonds that absorb the stresses of extraordinary expansion, contraction, shock, and vibration
  • Glues resinous and wet woods, hardwoods, and a wide range of dissimilar materials
  • Makes permanent, waterproof repairs to aluminum, plastic, and wooden boats
  • Provides a relatively long open or working time and a quick overall cure
  • Can be modified with WEST SYSTEM fillers


Six-10 Thickened Epoxy Adhesive


  • Point-and-shoot convenience of a self-metering coaxial cartridge
  • Gap-filling structural epoxy
  • Bonds tenaciously to wood, metals, fiberglass and concrete
  • Use with any standard caulking gun (do not use a rodless pneumatic gun)
  • Shear thinning properties—"thins" as it's worked
  • Easily tooled into a non-sagging fillet
  • Wets out fiberglass
  • Workable in the static mixer for 42 minutes



G/5 Five-Minute Epoxy

  • An easy-to-use epoxy for quick repairs and general bonding
  • Use for making jigs and fixtures quickly and to hold parts in position while standard epoxy bonds cure. Not intended for continuously wet applications
  • Can be modified with WEST SYSTEM fillers

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