Homebrew PCBs

At 07:25 PM 09-07-16, you wrote:
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>And what's around it?
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>ST
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>On Sat, Jul 9, 2016 at 5:22 PM, Cristian crissstian@... [Homebrew_PCBs]
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> > My UV source is moving to expose that trace.
> > Cristian

My concern was: is the overexposure negative or the UV coating will accept it?
And how much.
I've got the answer.
Cristian