Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] Re: Getting started with Cupric Chloride - I \tthink...

From: Stefan Trethan <stefan_trethan@...>
Date: 2009-01-26

I would think it must be the 3% type, two parts out of three is _WAY_
overkill with 30%, probably outright dangerous.

ST

On Mon, Jan 26, 2009 at 9:58 PM, Wayne Topa <linuxone@...> wrote:

> What was the volume of the the peroxide, the 3% drugstore type or
> the 30% Beauty Supply type? I was able the get the 30% and I think I
> read, somewhere, that 1 to 1 was OK.
>
> Wayne
>