Do I need an oven to store low-hydrogen electrodes?
All low hydrogen consumables must be dry to perform properly. Unopened Lincoln Electric hermetically sealed containers provide excellent protection in good storage conditions. Once cans are opened, they should be stored in a cabinet at 250º-300ºF (121º-149ºC).
When the electrodes are exposed to the air, they will pickup moisture and should be redried. Electrodes exposed to the air for less than 1 week with no direct contact with water should be redried as follows:
E7018: 1 hour at 650º-750ºF
E8018, E9018, E10018, E11018: 1 hour at 700º-800ºF
If the electrodes come in direct contact with water or have been exposed to high humidity, they should be predried for 1-2 hours at 180º-220ºF first before following the above redrying procedure.
Standard EXX18 electrodes should be supplied to welders twice per shift. Low hydrogen electrodes with the suffix "MR™" have a moisture resistant coating and may be left out up to 9 hours or as specified by code requirements.