Be careful! I build hydrogen cells and some of the same products are used for a electrolyte base. After the current is applied for a period of time (especially with baking soda) there are bi-products that form a fairly harsh acid. Do not get that on your skin. Dispose of it by dilluting with a large amount of water. The best electrolyte base to use is KHo (potassium). It is more pure and does not have other chemicals in it's makeup as does washing sodas etc...
FYI: De-rusting using electrolysis
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frederic
The Junk Man
An even easier solution to converting rust to a hard, paintable primer is to use a product called "Ospho" available at Ace Hardware type places (hardware stores, home centers, etc).
Wire brush off the flaky stuff, brush on the Ospho and let it dry to a nice pickled finish, then paint over with a primer and/or paint of your choosing.
Using this method, I restored my F350 crewcab's frame and suspension in a day, and that truck has one big frame.
Electric de-rusting is neat, but it's time consuming for essentially the same results as chemical conversion.
Wire brush off the flaky stuff, brush on the Ospho and let it dry to a nice pickled finish, then paint over with a primer and/or paint of your choosing.
Using this method, I restored my F350 crewcab's frame and suspension in a day, and that truck has one big frame.
Electric de-rusting is neat, but it's time consuming for essentially the same results as chemical conversion.
frederic
The Junk Man
That's all ospho is, phosphoric acid with some filler.
The last quart I bought at my local Ace was $12. Two bottles was enough to brush onto my F350 crewcab frame as well as the underside of the cab and the underside of the bed.
Since it has the consistency of water, a lot of it dribbles off which I collect in an alumimum pie pan to brush right back on somewhere else ;-)
The last quart I bought at my local Ace was $12. Two bottles was enough to brush onto my F350 crewcab frame as well as the underside of the cab and the underside of the bed.
Since it has the consistency of water, a lot of it dribbles off which I collect in an alumimum pie pan to brush right back on somewhere else ;-)
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