I have been padding beads on a flat plate, for practice on an up coming welding project. I purchased a pack of 7018 H8 AC Lincoln rods from Lowe's. I have been getting bad! porosity at the start and restarts. I had some Lincoln 7018 H4R in a screw cap plastic container, prob. 15 yrs old. They ran p...

I have been padding beads on a flat plate, for practice on an up coming welding project. I purchased a pack of 7018 H8 AC Lincoln rods from Lowe's. I have been getting bad! porosity at the start and restarts. I had some Lincoln 7018 H4R in a screw cap plastic container, prob. 15 yrs old. They ran pe...