i remember now where i have my koh from.
i got it from a friend which is growing wine.
they use it to clean out the tubs in which the berries are transported from
the vineyard to the place where they are pressed.
Maybe you can get it in a store for farming...
No idea if there is wine growing where you are and if they use it too to
clean tubs..
Still te best source may be chemical supplier...
Even with mail order it may be cheaper (and easier)..
st
On Mon, 18 Aug 2003 09:40:07 +1000, adam Seychell
<
adam_seychell@...> wrote:
> 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
>>
>
>
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