SOHC.co.uk Forums > CB750

Rust removal from a painted tank ?

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Oddjob:
I've bought Evaporust and TBH I didn't rate it much. Very expensive for what it is.

DomP:
I've done the electrolysis or 'reverse plating' as I like to call it, really easy way to clean a tank up.

Athame57:

--- Quote from: DomP on June 16, 2025, 01:27:18 PM ---I've done the electrolysis or 'reverse plating' as I like to call it, really easy way to clean a tank up.

--- End quote ---
How toxic can electrolysis make a small area's air if it actually does? I have a tank to derust myself but I don't want to aphixiate me and my dog  :o  and I have no way of doing this anywhere else but my one room flat!  ::)

DomP:
I wouldn't like to say, I did it in my garage which is far from air tight

SeanFD:
If the rust is not too bad, and you're not in a hurry, you can fill it with vinegar, assisted by some nuts and bolts if needed. Big advantage is you can either keep the vinegar for reuse, or throw it down the sink.

I've used electrolysis also. You need an anode (-ve polarity, sacrificial part) that reaches towards the end of the tank; a short thing dangling through the filer cap won't be sufficient.

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A horrible messy goo will come out of the filler cap, so protect the surface the tank is sitting on.

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