209 EXTRA SLOW HARDENER is a low-viscosity epoxy curing agent. It turns out to be useful in a majority of hot-weather bonding situations, and when very long working time and cure time are needed. 209 Extra Slow Hardener produces a slow epoxy cure that develops physical properties regularly at room temperature. It yields a rigid, high-strength moisture-vapor resistant and functionally water-resistant solid.
USE WITH WEST SYSTEM 105 RESIN for general coating and bonding applications in extremely warm and/or humid conditions, and for extended working time at room temperature. Forms a clear, amber-colored solid with just right physical properties and moisture resistance for bonding and coating applications.
PROVIDES ABOUT TWICE the working time of 206 Slow Hardener. 209’s pot life at 72°F (22°C) is 40 to 50 minutes. Pot life at 95°F (35°C) is 15 to 20 minutes. Cures to a fantastic state at 72°F (22°C) in 20 to 24 hours. Cure to a fantastic state at 95°F (35°C) in 6 to 8 hours. Reaches maximum strength at 72°F in 4 to 9 days Minimum beneficial working temperature is 70°F (21°C).
PAIR WITH WEST SYSTEM 105-B Epoxy Resin. Blend with with WEST SYSTEM 105 Epoxy Resin at a 3-parts resin to one-part hardener ratio.
EASILY MODIFIED with WEST SYSTEM Fillers, Additives, and Pigments to fit the job handy, whether coating, applying fiberglass, structural bonding, or fairing. Now not intended for clear coating.
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