What can I spray on corrugated tin to protect it from heat & rusting?
We are using some rusty old corrugated tin to put behind our wood burning stove in the mountains. I've sanded it down to get rid of the major rust, but leaving some of it to keep the beautiful, rustic patina. My question is, what can I use to coat it with to protect it? I would guess some thing to protect from high heat, but I don't want a high shine finish. Any suggestions?