The welds will burn a very small area at each weld.
I painted the quarters to make it easier when the time comes to do the trunk area later.
Hard to get in the tight spots when assembled.
The drop extentions and wheel houses were coated with POR before the outer panels went on and I'll spray down inside when I do the trunk to seal the welded spots then.
Touch up gun with pinpoint pattern for the seams then big gun for the floor.
Dave