[Lowfer] Etching boards

[Mike WE0H]

2 parts Hydrogen Peroxide to 1 part Muriatic Acid. Peroxide bought at 
WalMart & Muriatic Acid bought at a home improvement store. Works great 
in about 15 minutes etching time. I use the glossy photo paper in the 
laser printer and ironed on the board layout.

Mike
WE0H


Zack Widup wrote:
>
> Hi Mike,
>
> What are you using for etchant?  It seems ferric chloride is getting 
> almost impossible to get these days and I have been using sodium 
> persulfate but it tends to get through the Datak ER-71 photoresist 
> sometimes.  Ferric chloride never penetrates that photoresist.
>
> Zack W9SZ