I am replacing the torque boxes, floor supports, and floor pans in the Mach. What is the recommended method to protect the interior surfaces of the frame rails since I will be welding to them?
I've used POR15 on other projects and it's held up well but I didn't use it around any welded areas. Can I use POR up to a couple of inches from the areas to be welded and then use Upol Weld #2? This will be my first time using Upol so I'm not sure how well it prevents rust.