Hub corrosion - any tricks?

[Slipperyeel]

Before I refit my discs, I'm wondering if anyone has any great ideas to hold back the paint corrosion (see pics). I know anything short of re-powder coating will be temporary. Just looking to stave off this corrosion a little longer, if possible?

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[Santa-2512]

A wipe with some clear nail varnish?

 

[Slipperyeel]

A wipe with some clear nail varnish?

I like that idea! Wondering if there's anything maybe more durable .
Perhaps I'll just go the Hammerite route.
Regardless, it's happening tomorrow!

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[Akulaking]

I like that idea! Wondering if there's anything maybe more durable .
Perhaps I'll just go the Hammerite route.
Regardless, it's happening tomorrow!

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Nail varnish is very durable!

 

[Smiffypr]

I think that where you have bubbles, the corrosion will continue to spread under the paint. So you need to remove the paint back to where it is smooth and you can see no white powder, then paint the bare ally with a paint that will stick. I have often heard people talk about an "etch primer" to be used on ally. Hammerite is supposed to work on bare metal, so is probably a good bet.

 

[Bem]

I think that where you have bubbles, the corrosion will continue to spread under the paint. So you need to remove the paint back to where it is smooth and you can see no white powder, then paint the bare ally with a paint that will stick. I have often heard people talk about an "etch primer" to be used on ally. Hammerite is supposed to work on bare metal, so is probably a good bet.

Rustoleum do a tack primer esp for galv and alloy to allow the top coat to stick.
£12 or so for a small tin 250ml plus another £15 or so for Hardhat spray can - should be close enough in colour, if a bit saucy in price for such a small detail. Happy to do a good deal for any Tossers that turn up in the shop.
Nail varnish is starting to sound more appealing

 

[Slipperyeel]

I think that where you have bubbles, the corrosion will continue to spread under the paint. So you need to remove the paint back to where it is smooth and you can see no white powder, then paint the bare ally with a paint that will stick. I have often heard people talk about an "etch primer" to be used on ally. Hammerite is supposed to work on bare metal, so is probably a good bet.

I think you're right about cleaning it back (until the white powder has gone).

Wondering what I'm getting into and if I should just leave it. I'm have a cup of tea, but was about to get onto it as I've cleaned all the parts (wheel and discs etc) this morning and their now all dry and grease free...

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[Brodie13]

Seriously difficult in my experience to improve. Tricky, very tricky, to prepare for repainting due to the shape and colour matching another problem. Furthermore, the edges of paint adjoining where you’ve rubbed down to the aluminium will be proud once you’ve primed the hub. Best left alone…….have another cuppa and relax is my advice!

 

[Slipperyeel]

Seriously difficult in my experience to improve. Tricky, very tricky, to prepare for repainting due to the shape and colour matching another problem. Furthermore, the edges of paint adjoining where you’ve rubbed down to the aluminium will be proud once you’ve primed the hub. Best left alone…….have another cuppa and relax is my advice!

Your advice is good. It's pretty much what I did

I did actually use Santa's idea for clear mail varnish (I added the 'clear' bit, not sure which colour Santa was thinking of ).

It's all back together now. Just need to fit a new rear tyre and I'm released!

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[Brodie13]

Well done….panic over!