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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.
|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|