Homebrew PCBs

I guess I don't know what "tenting" means.
--
Phil M.

----- Original Message ----- 
From: "cunningfellow" <andrewm1973@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Wednesday, May 22, 2013 8:13 PM
Subject: [Homebrew_PCBs] Re: printer


>> Phil wrote:
>>
>> I haven't measured the film, but I'd guess
>> about 1 or 2 mils thick.
>
> 33um (1.3 mil inch) is the thickness of stuff
> that the manufacturer of the stuff I use says
> is unsuitable for "tenting"
>
> 50um (2 mil inch) is listed as good for tent
>
> So 1..2 mil could make a difference.
>
> I nice high contrast phototool makes a diff
> too.  Getting the tent all UV'd up before the
> develop step.
>
>
>
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