Technical Electrolysis anyone?

[gordinir8]

Ok here is a method I am using for a couple of years now and I am very satisfied with it. Electrolysis removes the rust and lives a very gentle dust which can be removed in a few minutes with a metal or plastic brush.
Here is the rear brake plate which was heavily rusted.

 

[fiat500]

What's in the liquid Thomas?

 

[Toshi 975]

That is a method I have used many times using washing soda for the electrolyte and an old mobile phone charger to give a trickle current. Apart from releasing even the heaviest of rust it will also loosen any paint on non corroded bits of steel to the extent that it will wash off with a hose.

 

[Vitesse]

I used to have something years ago that was water based and was perfectly safe and removed corrosion really well. You just left it dumped in a bucket of the stuff over night and the next day all the corrosion had dropped off. It wasn't quite as good as new but it was pretty impressive. I think it is similar to the stuff Peter tends to use but I cant remember what it was called?

 

[fiat500]

Phosphoric acid.

 

[Vitesse]

Phosphoric acid.

Yeah that's it I knew it was acid of some type but couldn't remember the rest.

 

[stevehg]

When it can be dipped, I use bilthamber's Deox C...
http://www.bilthamber.com/corrosion-protection-and-rust-treatments/deox-c

If it needs stripping/cleaning in situ, I've found 3M's clean n strip wheels to be very good, however they seem to have got very pricey in the last 6 months.

I've just also bought a 220L blast cabinet for really corroded stuff and for getting off powder coat.

Cheers, Steve

 

[gordinir8]

What's in the liquid Thomas?

I am using Baking soda, 2-4 big spoons and a car battery charger that can deliver 2-5 amps, the more the time passes the more the amps increasing because metal is getting clear and has better conductivity.
Thomas

And here is the finished product

 

[F123C]

There's been some very big threads on rust removal by electrolysis over on www.garagejournal.com and cover a number of variations on this technique.

They're also big fans of soaking parts in ordinary household vinegar to remove rust.

Electrolysis is probably the best and cheapest method for rust removal at home.

Many also swear by media blasting - sand/glass bead/walnut shells/soda etc. But you'll need a high cfm compressor to keep up with air usage!
For aluminium components, vapour blasting is said to give the best finish.

Al.

 

[gordinir8]

Finally painted with anti rust paint with my good old badger 250 spray gun, special for such applications.