--- In
Homebrew_PCBs@yahoogroups.com, Lez <lez.briddon@...> wrote:
>
> I think the uniball px203 is resistant to everything.
>
> But I have not tried muriatric stuff, cant get it where I am, but
>as it
> withstands ferric overnight, I think it has a chance.
>
For muriatic acid: I don't know where you're located but you might
want to check at a swimming pool supply or home supply store for
muriatic acid. It's frequently used for pool maintenance and concrete
cleaning. It's usually available in a 30% or so concentration in
gallon containers.
For hydrogen peroxide: A professional beauty supply store should
carry the 12% variety which is labeled 'Volume 40'. That's about the
strongest that I've found.
You may need to find someone with a beautician's license (or convince
them that you're not going to bleach anyone's hair). The license
requirement can vary from one store to another.
Regards, Bob