West System 205 Fast Hardener

$17.60 + gst
SKU WSZ205-200
Medium-viscosity epoxy curing agent


The West System 205 Fast Hardener is a medium-viscosity epoxy curing agent. When mixed with the 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties.

205 is used in a majority of situations such as general Bonding, fabric application and barrier coating, It is formulated to perform at lower temperatures and to produce a rapid cure that develops its physical properties quickly at room temperature. The mix ratio is 5 parts resin to 1 part hardener by volume. Not intended for clear coating.

Project Uses:

  • Marine
  • Boat Repair
  • Bonding
  • Fabrication
  • Barrier Coating


Cure Time:

  • Pot life (100 grams cupful): At 72°F (22°C): 9 to 12 minutes
  • Working time (thin film): At 72°F (22°C): 60 to 70 minutes
  • Solid state: At 72°F (22°C): 6 to 8 hours


Cure Temp:

  • Minimum: At 40°F (4°C)