roof skin replacement (galvy spray?)

[chico68]

I am preparing to do an inner and outer roof skin replacement, I have sand blasted these parts and was wondering if anyone has tried the galvy spray that's out there. I would like to coat the panels before welding them up as to give them a lot better protection than the factory did (bare steel). I will use weld through primer at the weld areas, but need some feedback on the galvy spray. Thanks Rob P.