[sdiy] Panel Finish

[Roy J. Tellason]

On Wednesday 01 April 2009 10:56:25 am Scott wrote:
> Is there any long term problem w/ spraying bare aluminum w/ lacquer or
> poly?  I've been making panels by transferring an image  to the bare
> (silver) aluminum, then coating.   Will the aluminum still oxidize under
> the finish and cause trouble 10 or 20 years down the road?

Aluminum is oxidized within seconds of being exposed to air,  which is 
typical,  and why much aluminum isn't used for any sort of electrical 
contacting,  among other reasons.  You apply toner or whatever to a blank 
aluminum panel you're actually applying it to the oxide layer on the surface,  
as I understand it.



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