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Re: [Homebrew_PCBs] Question about etching pcb's

2018-04-09 by Norm

As a beauticians product, it IS a bleach - HAIR bleach, as the writer 
specified.� It is not LAUNDRY bleach.� Just as not all acids are HCl, 
not all bleaches are chlorine based.

Norm� w6nim



On 4/8/2018 5:38 PM, alienrelics@... [Homebrew_PCBs] wrote:
>
> Please do not call it "bleach", it is not chlorine, it is hydrogen 
> peroxide.
>
>
> Someone coming across this thread may be confused by this. I have no 
> idea what would happen if chlorine bleach and hydrochloric acid were 
> mixed.
>
> Steve Greenfield AE7HD
>
>
> ---In Homebrew_PCBs@yahoogroups.com, <kabowers@...> wrote :
>
> Look for clear hair bleach. I think it's around 12% (40 deg. Baume?);
> strong enough to burn your bare hands.
> I understand janatorial supply shops have it even stronger, but it
> starts to get dangerous and these days may find the police checking
> you out.
>
> I got mine from the local Sally Beauty Supply.
> In this part of the US they seem to show up
> near WalMarts.
>
>
> 



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