weld through primer?

[Dodgenut64]

In the next week or two ill be welding back in a radiator support and was wondering if i should primer up were metal will be covered by metal (were the fenderwell attaches to the upper radiator support), even though it will be closed together with the spot welds. I thought i heard someone mention some weld through primer, does this tuff work? If not, what should i do about the bare metal that will be inclosed. will it be ok once the outside of the rad support if primered up? thanks

 

[70Duster440]

I've used weld through primer on the back side of panels or seams like you're talking about. I'm sure it will help protect from corrosion to some degree - just how effective it is, I don't know. I've found it a little harder to weld because it does generate spatter.