Re: ATM Method of Blackening Brass

[Dick Strever <Strever@concentric.net>]

Donn Starkey wrote:
> 
> I make many of my telescope accessories from brass.  I often paint the
> interior of these brass eyepices flat black.  However, when I comes to
> the threaded areas, paint causes the problem of adding to thread
> diameter and flaking off.  Some of the purchased brass optical prodcts
> have a lovely flat black patina to them which does not appear to be a
> typical paint.  Ther most be some ways to either electro-coat or
> electro-deposit such a coating which could be accomplished in a small
> shop.  Does anyone know a method(s) for blackening brass which leaves a
> flat black finish?
> 
> Donn Starkey
> dstarkey@solaris1.mysolution.com
Donn,
 
    Lamp makers "leaded glass" use a blackener for brass to get an
antique affect and the longer you use it the darker it gets. You can
often find it "black patina" in a lamp making hobby store. It does use
dangerous chemicals so you do have to take care.

Dick Strever A wannbe atm