Home > Epoxy and Adhesives > Epoxy Resin >
West System 209 Extra Slow Hardener
West System 209 Extra Slow Hardener
209 Extra Slow Hardener is formulated for use with WEST SYSTEM Brand 105 Resin for general coating and bonding applications in extremely warm and/or humid conditions or when extended working time is desired at room temperature. Provides approximately twice the working time of 206 Slow Hardener. Forms a clear, amber-colored solid with good physical properties and moisture resistance for bonding and coating applications. Not intended for clear coating.
Pot life at 72°F (22°C): 40 to 50 minutes
Pot life at 95°F (35°C): 15 to 20 minutes
Cure to a solid state at 72°F (22°C): 20 to 24 hours
Cure to a solid state at 95°F (35°C): 6 to 8 hours
Cure to maximum strength at 72°F: 4 to 9 days
Minimum recommended temperature: 70°F (21°C
|
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
|
The MSDS on this web site are presented in PDF format. Adobe Acrobat is required to read these files. A FREE copy of Acrobat Reader can be downloaded by clicking here: Acrobat Reader 209 Extra Slow Harden MSDS