Cad-welding in the rain? Only done it ONCE. Things to add to the list of PPE - (and probably not OSHA approved) weed-burner torch with a rose bud tip for dryer, and a shovel to hold the top of the mold down. If it does blow, it shoots the 2300 degree magnesium burn out the front of the shovel (facing down) that you place on top of the mold. We lost 1 in 5 shots,and they were only #300's!
Wouldn't do it again though (Early 90's).
Wouldn't do it again though (Early 90's).