209 Extra Slow 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. 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.
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)
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