Since I seem to buy a lot of his stuff.... you could be right!
a cold copper/selenium bath or a hot caustic bath should do the job
When God said “Let there be light” he surely must have meant perfectly coherent light.
a cold copper/selenium bath or a hot caustic bath should do the job
or read this http://www.modelshipwrightsdatabase....Blackening.pdf
When God said “Let there be light” he surely must have meant perfectly coherent light.
I use this http://www.micromark.com/Blacken-It-4-fl-oz,7267.html
It works good but if the part has threads you don't want to soak it. I use a Q-tip soaked in the solution to apply to the inside of threaded housings.