Debate: Is it worth spending extra on a weld-through primer for panel gaps?
I started using a special weld-through primer on a quarter panel repair last week after getting surface rust in the gaps on my previous job. The can cost me $18, but it stopped corrosion where the spot welds go. On the other hand, my buddy says he skips it and just uses regular primer after welding, and he hasn't had issues in 5 years. Does the extra cost and time pay off in the long run, or is it a gimmick for most shop jobs?