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

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

Subject: Re: [Homebrew_PCBs] Very fast etching 10 seconds!

From: Stefan Trethan <stefan_trethan@...>
Date: 2011-07-22

Well known already, and potentially very dangerous if large quantities
of etchant are used.

Definitely do that outside, lots of HCL fumes due to the exothermic reaction.

ST

On 7/22/11, leeleduc <leeleduc@...> wrote:
> I've been experimenting with etchants and have come up with a simple and
> fast one.
>
> 1 ounce Muriatic acid from the hardware store
> 1 ounce BAQUACIL Oxidizer from pool supply store (27% H2O2)
>
> 2 inch by 4 inch, 1 ounce solid copper. no traces. Etchant was at room
> temperature and I agitated the board with a foam paint brush.
>
> Etch time 10 seconds!!!!!!!!!!!!!
>
> give it a try.
>
> BAQUACIL Oxidizer
> A chlorine-free liquid oxidizer of 27% specially-stabilized hydrogen
> peroxide used to clarify pool water by oxidizing organic compounds (swimmer
> waste).
>
> http://www.baquacil.com/Products/coreProducts.htm
>
>
> PS Do this outside wearing safety goggles! Lots of fumes.
>
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>