EVO-STIK Hard & Fast Metal Epoxy Putty is an easily worked, cold setting two-part epoxy resin putty. On curing, the putty provides a tough, durable grey coloured material which is dimensionally stable, resistant to chemical attack and can be painted. The usable life of the mixed putty is up to 3 minutes at 25°C. EVO-STIK Hard & Fast Metal Epoxy Putty will form a strong bond with most structural materials such as metal, glass, most plastics, wood, and dry concrete