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#209-SC Extra Slow Hardener


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Hazard Shipping – Ships ground in U.S. Lower 48.
In stock online.
Model # 372888 | Mfg # 209-SC

209-SC Extra Slow Hardener is formulated for general coating and bonding applications in extremely warm and/or humid conditions, or when extended working time is desired at room temperature. Mixed with 105 Resin at a 3:1 ratio, it 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. 1.45 gallons.

  • 209 SC-size hardener should be paired with 105 C-size resin.

Selection Guide

#209-SC Extra Slow Hardener

Best Use Extra-Slow Hardener for 105 Epoxy Resin
Capacity 1.45 Gallons
Cure Time 20 to 24 Hours (Working Time 3-4 Hours) at 72 F
Type Hardener