I have removed the drivers side cowl to get at 67 years of internal surface rust and resolve a few other issues. I’ve started cleaning it up with wire wheel an scotchbrite pads. Next i plan to treat with phosphoric acid. The question i have is what then?
I was planning on mastercoat silver as i wont be able to get the acid out of all the nooks and crannies rendering epoxy a less than optimal choice. Now I’m considering adding some plugs to the cowl in strategic locations to facilitate treatment with woolwax or fluidfilm after I’m done with painting the truck. This would be instead of paint or sealers.
I’m not a big fan of sealing rust in with paints and sealers. What have you folks done to treat inner cowls?
