I joined this forum to learn as much as I can. Being from Pennsylvania we get a lot of corrosion. I have a small project that I am working on which will require me to butt weld some cab corners to the cab of a pickup truck. I am confident in my fitment but am concerned on how to protect my weld area after the fact. How should the outside and the inside of the weld be protected for maximum corrosion resistance? Thank you for any help and if I need to give more detail I will do that.