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Subject: Re: [Homebrew_PCBs] Etch resist tests added to Photos section

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-09-30

On Sat, 30 Sep 2006 16:42:49 +0200, kilocycles <kilocycles@...>
wrote:

> One
> problem, yet unsolved, which was not part of the test, is performance
> of tape when it has to overlap for coverage. I've been getting some
> seepage under the overlaps at the edge of the boards using 3M 33+
> electrical tape.


I found the problem goes away if i rub the overlap with a fingernail to
close it up. I used thin PE or PP tape.

Best seems to be to avoiding to mask stuff at all, simply etch both sides
at once.

ST