Homebrew PCBs

On Sat, 16 Aug 2003 19:30:00 -0700 (PDT), Randy Knutson 
<ken_ryder@...> 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
>
>


please if you reply to older messages to get the adress delete the older 
message part...

isn't there a chemicals supply close to you?
i always tried to get chemicals like you say, some household product at 
supermarkets.
but then i discovered a cemicals shop which i can reach easily where 
everything is stocked, the assistants
know what they are doing and can help you. And the price is much lower than 
substitute products.
If you add that at the professional shop you get the pure chemical with 
nothing added in best concentration
i see no reason why i should not go there.
even with buying H2o2 there were no questions at all (somebody here said 
the police will get you outside
the shop because h2o2 is used for illegal drug procuction.).
i remember a friend buying KNO3 (he made model rockets) which is obviously 
only used for, lets say, very fast
combustible materials (or keeping flesh red at the butcher) and they did 
not ask anything.


i think there was mentioned often there is some houshold cleaner which is 
potassium hydroxide but i don't remember how it is called.

go to k-mart and look in the cleaners section for a powder/granulate, they 
should label on the outside what it is.
but only if you can't find no chemicals supply.


regards
stefan