Go here:
http://www.abbeyclock.com/brass.html
It may or may not shed some light on the subject for you. What the writer
describes is almost the exact technique I use to clean brass before painting.
My photo supply shop is my good buddy for the chemicals along with the cleaning
supply outlet for the ammonia. One last note. I know Samhongsa and SKI, SKI
being the current builders for Sunset, flash electroplated their models
before final assembly when they were selling models in a clear lacquer only.
It makes them all look a pretty shiny brass color. Today a lot of exporters
black oxidizes their models before painting, as in the Last Southwind models. I
seriously doubt it has anything to due with coal or oil, or even who was the
last person to touch them.
J Rustermier
--- In [email protected], Bob Werre <bob@...> wrote:
>
> I have a question that has been bugging me for some time. It doesn't
> seem to make any difference when working with brass...but there seems to
> be two colors of the stuff. One color is a dull brownish bronze flavor
> while the other is the more common brighter 'golden' color. Why the
> difference?
>
> I've started to get my painting area cleaned up to work on several types
> of brass trucks, plastic trucks, boxcar doors, and two brass Geep 30's.
> One of the 30's has a chassis that is this dull brown color while the
> rest of the engine is the lighter color.
>
> Bob Werre
> BobWphoto.com
>
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