Can be run pass on pass over slag.
Tartan BFor mild and low alloy steels. These results are possible even when welding over paint, rust and dirt.Tartan B, 14" Deep Penetrating Electrode for Mild Steel Repair with Contamination, 5/32" Dia., 11lb In maintenance or production welding, the characteristics of Tartan B enable the welder to produce high strength non-porous welds on pipe in tight corners and overhead.