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Subject: Re: [Homebrew_PCBs] Re: Muriatic Acid and Peroxide Brew

From: DJ Delorie <dj@...>
Date: 2008-07-02

"TonyB" <tbarros@...> writes:
> Hi.

Hi.

> With the FeCl and "sponge technique", what do U use for resist?

Please use whole words, not leet-speak.

I haven't tried using the sponge technique with photoresist yet, but I
have used it with toner transfer. Do do this, you need to use a
coating film to protect the toner from the abrasion. I use Pulsar's
green film for this. Photoresist should be usable as-is if it's
adhered to the board sufficiently that the sponge won't abrade it off.

> Are U the pre-sensitized pcb??

No, I'm not the pre-sensitized pcb.

So far, all I've used is toner transfer, or dry film photoresist which
I apply myself. I use Adam's wet lamination technique.