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Homebrew PCBs

Index last updated: 2026-04-13 23:21 UTC

Message

Re: Silicon coated foil

2005-12-08 by matt clement

I just got done trying this and it didnt work well at all.  I taped 
the edges of the foil to regular paper and ran it through the laser 
printer.  I printed on the dull side of the "release" foil.  I think 
the dull side is the one with the magic coating.  Anyway my traces 
are missing spots and have what looks like bubbles throughout.

Is this the kind of results others are having?





--- In Homebrew_PCBs@yahoogroups.com, "soffee83" <soffee83@y...> 
wrote:
>
> Myc--
> 
> Thanks! Guess I'm off to the grocery store tonight. ;)
> 
> Only thing I haven't liked about the Staples paper is getting the 
> paper residue off. This foil could be interesting.
> 
> Any tips on how you stuck it to the carrier sheet, and do they 
remain 
> together while you heat, and/or when you remove (soak??) the foil? 
> I'll be using the clothes iron process with an aluminum plate 
> attached.
> 
>                               -Thanks!
> George
> 
> PS (Stefan)- I was about to post a question about the "etched 
through" 
> sections you're fighting with. Be on the lookout for it. I'm 
thinking 
> of grabbing a roll of Pulsar's TRF from DigiKey. One of my biggest 
> problems with the over-etching seems to be from inconsistent 
chemical 
> progress across the board, maybe due to larger masked areas 
dirtying 
> up the etchant and killing it's strength in certain spots, causing 
me 
> to over-etch the others. I had been manually agitating before, and 
> have just built one of those small, flat, vertical tanks. It's got 
two 
> bubblers in the bottom and a heater, so things should get a lot 
better 
> soon.
>

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