Posted by Chris Case [108.162.215.185] on Friday, July 29, 2016 at 22:15:58 :
In Reply to: Electrolytic rust removal- and gun buing? posted by Chris Case [108.162.215.94] on Thursday, July 28, 2016 at 19:38:03 :
One cheap way to do good bluing is called "rust blueing". A salt and acid solution make the part rust, then you boil it in clean water, which makes the red rust turn into blueing. It takes a half diozen cyckes. Steel wool between rustings.
But I wonder if we could do the same thing with a bucket of rusty DPCD bolts?