Getting rid of rust stains from fibreglass/gelcoat?

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Has anyone come up with a solution for removing rust stains from fibreglass/gelcoast? There's som staining on the boat interior, i've replaced the guilty screws with stainless ones, but would like to get rid of the stains that they caused

[GuyP]

There's a product called Y10 (a gel) which you apply with a brush and wash off after 10 minutes. I've just used it and it works really well. Costs £10 for about 500ml

Use it on the hull to get rib of any yellow staining from marine growth as well.

[floater]

Astonish !! shifts rust no problem and most other things

but be aware that it is abrasive so you need to re polish afterwards

but its only 79p from wilkis

Andy

[jyasaki]

Have you tried white vinegar?

Or a Calcium/Lime/Rust household cleaner (usually contains some kind of acid... Phosphoric?)

jky

[Slaphead]

Oxalic acid is supposed to be good. Wipe on then remove with a wet sponge quickly. Can be got from your local chemist. Good for removing rust from wood as well.

Please note I have not used this stuff myself.

[Nos4r2]

[Sixy_the_red]

Originally Posted by Nos4r2

Are you having an affair with Barry Scott?!

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Originally Posted by Nos4r2

I rang Barry but aparantly he's too busy to consult me on my rust stains

[Jizm]

too busy cleaning 2 pence pieces no doubt...

[cameronke]

As Slaphead says, oxallic acid will do the job well. I got mine from Boots (special order) for about £5. Be very careful when handling as it is very toxic; wear gloves and watch for splashes.

A useful trick is to mix it with wall paper paste to make it gloopy to stick to vertical surfaces. Roll/brush on, leave for a few minutes and then hose off....made a great job of my (ahem) sailing boat

Cameron