WEST System 209 extra slow hardener
WEST System West System
  • WEST System 209 extra slow hardener

WEST System 209 Tropical Hardeners

West System 209 Extra Slow (Tropical) hardener is formulated for use with WEST SYSTEM 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.

It provides approximately twice the working time of 206 Slow Hardener. 209 cures to a clear amber-colored solid with good physical properties and moisture resistance for bonding and coating applications. Not intended for clear coating.

IN STOCK - Available for pickup  
$38.17 / ea
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Tech Spec Product Info User Generated Content
Mix Ratio, Resin:Hardener  3:1 by volume (3.5:1 by weight) 
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) 
Pumps required  300, 306-23 or 309-3 
Material: Epoxy
Type: Hardener
Usage: Bonding
4.5 2

What I needed.


Building radio control model planes and need to "fill in the gaps" with this and micro balloons.Have not used. Just got it, as suggested by another modeler, to have available when the "filling" begins.


Albuquerque, New Mexico


Must-have for the novice!!!!


Allowed me plenty of time to get transom in and secured before it started gelling and curing. Transom is now bulletproof! And in 90+ degrees!




WEST System 209 Tropical Hardeners



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