West System 206 Slow Hardener 11.31 GallonsSelect your hardener to give you the pot life you want at the temperature and conditions in which you will work. #205 Fast Hardener, mixed at a 5: 1 ratio with #105 Resin, results in a pot life of 9 12 minutes at 72F, with solid cure in 6 8 hours. It has a minimum recommended working temperature of 40F. #206 Slow Hardener, mixed at the standard 5: 1 ratio with #105 Resin, has a 20 25 minute pot life at 72F with 12 18 hours required for solid cure. It