It may also be worth getting hold of some "seam-sealer" (I use the U-POL P88 stuff) which is brushed on like a thick paint over the welds and adds another layer of protection before you paint. It can be painted into the nooks and crannies that the MIG gun won't reach.
I Have bought Metal ready prep spray/ POR 15, then i was going to use a cellulose u/coat and topcoat.
|