Formulated for use with WEST SYSTEM #105 resin in extremely warm and/or humid conditions for general bonding and coating applications, providing approximately twice the pot life and working time as #206 slow hardener. Provides adequate pot life up to 110° F and 70° F when additional pot life and assembly time may be desired. Provides 15-20 minutes of pot life at 95° F and 50-60 minutes at 70° F. Will cure to a solid state in 6-8 hours at 95° F and 20-24 hours at 70° F. Further curing occurs over the next 4-9 days. Forms a clear, amber-colored solid. Forms a clear, amber-colored solid | West System Extra Slow Hardener, 33 Gallon