WEST SYSTEM FAST HADENER 205 1G

The West Systems epoxy does not have a haz mat charge if shipped domestic USA ground service.

In general, epoxies are not recommended for use with fiberglass mat material. Uni or Bi directional woven cloth only.

The 205 hardener will have a pot life at 72F/22C: 9 to 12 minutes. The 206 hardener will have a pot life at 72F/22C 20 to 25 minutes.

Shelf life foe the West Systems 105 system is as follows:

Store at room temperature. Keep containers closed to prevent contamination. With proper storage, resin and hardeners should remain usable for many years. After a long storage, verify the metering accuracy of the pumps. Mix a small test batch to assure proper curing.

Over time, 105 Resin will thicken slightly and will therefore require extra care when mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105 Resin. Warm the resin to 125°F and stir to dissolve crystals.

If you mix the hardener and resin you have a working time of 10-15 minutes for the fast and 30-40 minutes for the slow. The resin and hardener have a shelf life of 3 years.