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: CUCL Temperature

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-01-03

On Tue, 03 Jan 2006 17:40:03 +0100, Bruno St-Laurent <bsl88k@...>
wrote:

>
>
> Stefan how much H2O2 do i add ????
>
>
> Bruno


Of the 30% stuff just a little bit. A spoon full or two (DO NOT USE
METAL), 5ml or less i'd say. Basically the smallest amount i can pour with
my H2O2 bottle. This regenerate enough etchant for one, maybe two or three
boards, depending on size of course.

ST