Re: [CAD_CAM_EDM_DRO] "Light Bulb" EDM ???

Rust dissolving fluid is tartanic acid based. It's _exactly_ the same stuff
in the coke your kids and I drink too much of. I don't know if there's a
high enough concentration of it to work in coke though. I bought some from
an auto shop and it's a greeny coloured gel. You just paint it onto the
areas, leave it for ten or so minutes, then agitate it with a scouring pad,
toothbrush or paintbrush. You can then leave it a while longer or wipe it
off and apply a new layer. After a little while the gel looses it's
dissolving ability.

For light scaling of rust it might take one go to get it clean and another
to shiny. For really heavy rust it'll take a few. The more you can scrub off
first the better. Although it doesn't attack the clean metal like it does
the rust, it seems to leave a slightly dull appearance on the surface.

All the best,
John H.

> Franco,
> Please enlighten us further. What is the name of the
> rust-disolving fluid? Do you know if it's available
> internationally? This is probably, now an O.T. post, so
> please respond to me directly:
>
> RayHex jnr@...
>
> ----------
> > From: Franco Candido <candidomold@...>
> >
> > Hello Mike I have two full size EDM's Japax, plus
> mills. But when it
> > comes to taking out exhaust manifold studs that are
> really rusted in there.
> > I have found a rust disolving solution that is fantastic.
> All you do is heat
> > it .......
>
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