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#209-SA Extra Slow Hardener


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Hazard Shipping – Ships ground in U.S. Lower 48.
In stock online.
Model # 243883 | Mfg # 209-SA

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. 10.6 fluid ounces.

  •  209 SA-size hardener should be paired with 105 A-size resin.

Selection Guide

#209-SA Extra Slow Hardener

Best Use Extra-Slow Hardener for 105 Epoxy Resin
Capacity 0.66 Pint
Cure Time 20 to 24 Hours (Working Time 3-4 Hours) at 72 F
Type Hardener