I don't think VHT white stays white. I painted an old BBQ like a Canadian Flag using VHT white and Red. The white turned into a brownish off-white within a few hours of use. I cured it properly.
It will be hard to cure VHT with exhaust heat, the top of the headers will burn the paint before the lower end is hot.
If I did white, I'd use white fiberglass header wrap. A 50'x2" roll should do about 16' of 45mm exhaust pipe, $25-30. Also cuts down on a lot of prep, you need to be completely rust and grease-free for header paint.
For longevity of the colour on an exhaust pipe, you might want to check out ceramic coating. High Tech Coatings (no affiliation) does this work. For more info call 888-225-8648; open from 10am to 4pm eastern M-F (some weekends); located at 2256 County Rd 31, Ruscom ON N0R 1R0. info@hightechcoatings.com
Nope. It had some kind of ceramic coating that has discolored in some spot (heat?) and chipped off in others. I have to use coarse sand paper, renewed often, along with lots of elbow grease to scuff it.
FWIW I read your exhaust thread and if you guys think Autosol is good you will be gobsmacked by how much better Mothers Mag and Aluminum polish is.
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