I have a half box of 6013 electrodes which got lost in the shed for a while. Normally I keep electrodes in the house, but as I say, these got lost so they've spent about 5 years in an unheated shed. I wouldn't bother with them except that they're 1/16" electrodes, which are handy for welding 2 mm plate, and the welding shop which used to sell them locally closed down. They seem to be showing a bit of a powdery white deposit on the surface of the flux, perhaps something which the damp has drawn out?
Can these electrodes be dried successfully, or should I get some new ones? Suggestions would be appreciated.
Best wishes,
Chris