On Wed, 07 May 2008 17:41:36 +0100, Adam Aglionby <ledlight@[EMAIL PROTECTED]
>
wrote:
> On 7 May, 01:28, Ned Sneed <nervous_...@[EMAIL PROTECTED]
> wrote:
>> On May 4, 7:01 pm, Bert Morris <bertmor...@[EMAIL PROTECTED]
> 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 poli****ng
> 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
>
>
There's a set of metallic gold fresnels in Woodstock social club that I
had the car body shop spray up 13 years ago & they're still fine :-) Barn
doors tend to run cooler than that.
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