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Subject: Re: [Homebrew_PCBs] Re: A different PCB etching method proposal

From: <earlannis@...>
Date: 2013-03-04

On Sun, 03 Mar 2013 21:29:19 -0000
"John" <jferrell13@...> wrote:
>
>
> I just cannot get the nerve to run the vinyl through my
>HP 1102 Laser
> printer. It does work well with HP Presentation paper.

John,

When I run the (Avery A9 900 SUPERCAST OPAQUE 12 YEAR CAST
FILMS) paper through the printer it comes out with crisp
toner images on the (white, colored or transparent) vinyl.
There is no discoloration, shrinkage or wrinkling on the
stuff. After ironing the toner (with the paper backing
still attached) onto the PCB there is a gold/grey stain
left on the vinyl from the copper, and I have wanted to
run it through the printer again just to see if I could
reuse it again several times. But it is so cheap (24" wide
x 30 feet @ $62)that it isn't worth the time to
experiment.

As I said earlier I get all my 4"x6" material from the
offal of a sign shop. Almost ANY sign shop would let you
have all you need. There are many brands and my friend
suggested that the peel-off shelving vinyl would probably
work. I have NOT tried that.

Anyway, it is fantastic to peel the vinyl away from the
copper and have a perfect image, ready to etch. If you
haven't tried the Muriatic acid - Hydrogen Peroxide
etchant you will be delighted. It's cheap, clear... you
can watch the copper being dissolved... at room
temperature... and no bad fumes. Reusable for awhile and
easy to dispose.

Happy PCBs,

Earl