Do you use stuff like this Sean? I’ve used this as a first stage https://www.rust.co.uk/product/phos-kleen-a-industrial-use-rust-remover-127
followed by this https://www.rust.co.uk/product/phos-kleen-b-rust-remover-28 as a second stage to protect the metal followed by a zinc primer than two pack epoxy paint the followed by seam sealer and some top coats of paint or rubberised paint if surface exposed to the road. I be interested in what you use as well. Wish I had a workshop though.
followed by this https://www.rust.co.uk/product/phos-kleen-b-rust-remover-28 as a second stage to protect the metal followed by a zinc primer than two pack epoxy paint the followed by seam sealer and some top coats of paint or rubberised paint if surface exposed to the road. I be interested in what you use as well. Wish I had a workshop though.