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West System 205A Fast Hardeners .44pt and .98 Gallon
West System 205 Fast Hardeners
205 Fast Hardener® is a medium-viscosity epoxy curing agent. It is used in a majority of situations, at lower temperatures and to produce a rapid cure that develops its physical properties quickly at room temperature. 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. Not intended for clear coating.
| Mix Ratio, Resin:Hardener |
5:1 by weight or volume |
| Pot life at 72 F (22 C) |
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) |
| Pumps required |
WSY 300, 306-25 or 309 |
|
HARDENER
|
USES
Resin/Hardener
|
HARDENER TEMPERATURE RANGE (°F)
|
CURE SPEEDS at room temp *
|
|
|
POT LIFE
100g cupful
|
WORKING TIME
thin film
|
CURE TO SOLID
thin film
|
|
205 Fast Hardener
|
General Bonding, fabric application and barrier coating
|
|
9-12
min
|
60-70
min
|
6-8
hours
|
|
206 Slow Hardener
|
General bonding, fabric application and barrier coating
|
|
20-25
min
|
90-110
min
|
10-15
hours
|
|
207 Special Clear Hardener
|
Clear fabric application and clear coating for a natural wood finish
|
|
22-27
min
|
110-130
min
|
12-18
hours
|
|
209 Extra Slow Hardener
|
General bonding, fabric application and barrier coating
|
|
40-50
min
|
3-4
hours
|
20-24
hours
|
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205 Hardener MSDS