Fast Hardener (West System)

West System
.44 Pint - West System
Your Price: $20.10
Save: $1.86
(8% Off $21.96)
Part # 205A ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 17 mins.
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.86 Quart - West System
Your Price: $44.29
Save: $3.15
(6% Off $47.44)
Part # 205B ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 17 mins.
.94 Gallon 4 - West System
Your Price: $153.17
Save: $4.60
(2% Off $157.77)
Part # 205C ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 17 mins.
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This item is found in the following Product Families

The West System 205 Fast Hardener is great for use in general bonding, fabric application and barrier coating at low temperatures. This is a medium-viscosity epoxy curing agent that cures rapidly and strengthens its physical properties in room temperature.

It is mixed at 5:1 resin-hardener ratio to create rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties.

  • Medium-viscosity epoxy curing agent
  • Cures faster at room temperature
  • High-strength, moisture-resistant solid

Specifications

Manf. Part #: 205A

  • Pot Life at 72F (22C): 9 to 12 minutes
  • Cure to a solid state: 6 to 8 hours 
  • Cure to maximum strength: 1 to 4 days 
  • Minimum recommended temperature: 40°F (4°C)
  • Size: 0.44 pint

Manf. Part #: 205B

  • Pot Life at 72F (22C): 9 to 12 minutes
  • Cure to a solid state: 6 to 8 hours
  • Cure to maximum strength: 1 to 4 days
  • Minimum recommended temperature: 40°F (4°C)
  • Size: 0.86 Quart

Manf. Part #: 205C

  • Pot Life at 72F (22C): 9 to 12 minutes
  • Cure to a solid state: 6 to 8 hours
  • Cure to maximum strength: 1 to 4 days
  • Minimum recommended temperature: 40°F (4°C)
  • Size: 0.94 Gallon

Hardener Uses
Resin/Hardener
Hardener Temperature Range (F) Cure Speeds at 72 degrees
Pot Life: 100g cupful Working Time: thin film Cure to Solid: thin film
205 Fast Hardener General bonding, fabric application and barrier coating 45-85 degrees 9-12 min 60-70 min 6-8 hours
206 Slow Hardener General bonding, fabric application and barrier coating 60-90 degrees 20-25 min 90-110 min 10-15 hours
207 Special Clear Hardener Clear fabric application and clear coating for a natural wood finish 60-90 degrees 22-27 min 110-130 min 12-18 hours
209 Extra Slow Hardener General bonding, fabric application and barrier coating 65-100 degrees 40-50 min 3-4 hours 20-24 hours

Average Customer Review for .86 Quart - West System
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarSo far, so good
by John from Council Bluffs, Iowa on February 10, 2016
I'm replacing the transom in my 18' Lund Alaskan and working in a heated shop through the winter that's only 50-60 degrees. The fast hardener definitely helps in cooler temperatures. As far as sealing the transom, we'll see how it holds up once the weather warms up.
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