Hello welding professionals, the following task is short for me: At a car. new sheet metal parts are to be welded. Partially bluntly welded, but also overlappingly welded points. I want to do both by means of TIG; MMA is also available. Since in particular overlapping spot-welded sheets in the overlap area can hardly be provided with corrosive protection, I wanted to treat these overlap areas beforehand with so-called welding primers. Does this work as I thought, or how do you solve the problem better? However, I don’t have a MIG/MAG welding machine. In the case of TIG welding, the sheet metal parts to be welded must be meticulously clean. How does welding primers or any other corrosion protection work? Is there something suitable? Look forward to numerous contributions to your experience on this topic. Best regards – Reinhard