I like Brownells Oxpho Creme for cold bluing.
It just takes multiple.....slooooow application after application.
Have a SG flat bolt than came on a recent buy. It was parked, but someone tried some cold blue on just the flat top. Looked horrible when I pulled it.
Stripped the old blue and park with Muratic acid....rinsed/de-greased with Lacquer Thinner and blew it dry. Poured some Oxpho Creme in a zip lock and left it over night.
Just pulled it and lightly buffed with a piece of oily #4 steel wool.
Came out very nice. Lazy way worked for once.
Charlie-painter777Information
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