Homebrew PCBs

On Thu, 10 May 2007 10:49:07 +0200, Leon <leon355@...> wrote:

>
>> Has anyone found the staedler (or other store-bought pens) able to
>> withstand
>> the muriatic acid and hydrogen peroxide etchant solution? I tried both  
>> the
>> sharpie "paint pens" with fair results, and sharpie permanents. Both  
>> seem
>> to
>> immediately dissolve in the solution.

> They work OK with ferric chloride.
> Leon


They work OK with hydrochloric acid and hydrogen peroxide etchant / CuCl.

Pen should be reasonably "fresh" (get the refiller too).

ST