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Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Message

Re: Etching Chemicals

2004-01-05 by dkesterline

> it also depends where you do your shopping, if muratic acid (HCl) 
is easy 
> to come
> by where you are and you can get H2O2 somewhere is most likely the 
cheapest 
> method.
> 
Muratic acid is widely used for cleaning masonary (bricks, block, 
etc) and controlling PH in swimming pools. Most any masonary supply 
house or pool chemical supplier should be able to sell you some in 
gallon jugs for less then $5.

H2O2 (hydrogen peroxide) should be available though any beauty supply 
shop, though I'm not sure about the strength you need. Very weak 
peroxide is available in the Pharmacy for disinfectant. It's not very 
strong, but if the recipie calls for water dilution, it might be made 
to work. 

Since this is redily available, someone want to post a recipie? Maybe 
some "Care and feeding" guidelines about the regeneration proccess?

-Denny

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