Homebrew PCBs

By "stripping" I assume you mean stripping negative dry film 
photoresist. If so then you can use any strong alkaline 
,such as sodium hydroxide also known as lye or caustic soda.
You only need 5% solution, and above that it doesn't prove 
much more effective at stripping action. I use a 3% NaOH 
solution for stripping resists.
If you must have KOH, then try industrial cleaning supplies.
There will be no problem getting hold of 25 kg bags of KOH 
from chemical suppliers.

Adam

Randy Knutson wrote:
> Hi, 
>  
> As I was stripping a PCB board today I realized my supply of Potassium Hydroxide was running very low. I was wondering if anyone knew of a common household item which contained pottasium hydroxide or knew of any common household item I could pick up at a Wal-Mart which could act as a substitute. I know I could probably strip it with sandpaper but I would like to avoid this if possible. 
> 
> Thanks in advance!
> Randy 
>