Doug's Headers Hi Temp Black Coating Question

Even the professionally applied ceramic coatings do not last. They all eventually rust through over time. So paint and powder coat will as well. You can help whatever coating you use to last as long as it can by using stainless hardware to attach the headers as well as anywhere above them, such as valve cover bolts and such. Rusty runnoff from anything above the headers will also compromise their finish over time. In the end, nothing will last forever. It's such a harsh environment, you can forget it.