Homebrew PCBs

msilv3r pravi:
> Hi. I'm new to this. I recently got some H202 and HCL from a chemical company. The H2O2 is 35%. I'm not sure what percentage the HCL is, however it's labeled "Hydrochloric Acid, 8, PG II." I don't know what ratio to use. Should I dilute the H202 with water? I'm worried about the combination turning into boiling water. Also, are lined latex gloves, the kind you use for kitchen cleaning, sufficient gloves? Does it matter which you pour in first? I plan on doing this outside. I have a plastic container for both the etching and the remaining enchant. 
>
> Thanks.
> -Mike
>   
Just use 1:1:1 ratio and should be ok.
If HCl is diluted just little longer etching time will be.

Pour watter into bowl after that HCl and last H2O2. You need little 
amount of liquid just to cover board. Do not preheat anithing and do all 
the thing outside.