Hardener selection—select a hardener for its intended use and for the cure
speed best suited for your job in the temperature range in which you are
working.
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.
Mix Ratio, Resin: Hardener
3:1 by volume (3.5:1 by weight)
Pot life at 72°F (22°C)
40 to 50 minutes
at 95ºF (32ºC)
15 to 20 minutes
Cure to a solid state at 72ºF (22ºC)
20 to 40 hours
at 95ºF (35ºC)
6 to 8 hours
Cure to maximum strength at 72ºF
4 to 9 days
Minimum recommended temperature
70°F (21°C)
Pumps required
300, 306-23 or 309-3
Did you Know?
ALL products we sell are factory new and come with the full Manufacturers Warranty!