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Adam Aglionby  
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 More options May 7, 12:41 pm
Newsgroups: rec.arts.theatre.stagecraft
From: Adam Aglionby <ledli...@gmail.com>
Date: Wed, 7 May 2008 09:41:36 -0700 (PDT)
Local: Wed, May 7 2008 12:41 pm
Subject: Re: copper barndoors
On 7 May, 01:28, Ned Sneed <nervous_...@meet-n-eat.com> wrote:

> On May 4, 7:01 pm, Bert Morris <bertmor...@erols.com> wrote:

> > Ned Sneed wrote:
> > > I want to have some barndoors that look like they are made of copper.
> > > What kind of treatment would work for this?

> > > Cheers!

> > > ned

> > Dear Ned,

> > Don't know the show or size of your barn doors in question, but if they
> > are already being/have been built, Krylon spray paint has a full line of
> > metallic paints of every kind, including copper, gold, silver, etc.

> I want to use these barndoors on a four-cell mole light, so I am
> thinking the barndoor might be the size that would fit on a 10"
> fresnel or so...I like the idea of spray paint, but there is the heat
> issue. I will be using the barndoors as a "look" rather than to
> actually shape the beam so there's that. Copper plating would be
> great, but would that be insanely expensive?

> Thanks for the replies!

> ned

Copper is first part of chrome plate, copper then nickel then chrome,
hence elctroplaters will do it, dosent need labour intensive polishing
in between plating keeps cost down. Copper is riding high as a
commodity at moment.

Might get away DIY with just contact plating:

http://steampunkworkshop.com/altoid-etch.shtml

Spray paint might stand the heat , but some types might flake with the
metal expansion.Big differnce on an MR16 to 5kW fresnel...

HTH
Adam


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