Natural Sound said:I use "Tried and True" finishes on my bottlehead bases. It doesn't contain any nasty toxic chemicals.
https://m.youtube.com/watch?v=fLjmFSsL1sI
You'll want to put some kind of a coating on the bell end too or it will rust. Spray paint is fine. Some of the guys around here use gun bluing which looks real nice. "Birchwood Casey" seems to be a popular brand.
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