Rust removal/painting

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steveparry
Posts: 48
Joined: 23 Oct 2007, 8:29pm
Location: Bristol

Rust removal/painting

Postby steveparry » 4 Aug 2017, 3:01pm

I've just bought a lovely Thorn Sherpa which was built up in 2010ish and hardly used since by the owner. I see there is rust on the paintwork on the chain stay end: https://photos.app.goo.gl/JrxhrqhMllBkHbUw2 Any advice on how to strip it back, remove the rust and repaint? I know if you buy a new Thorn they supply a pot of paint to touch up but I haven't got one and on SJS website none is listed... Thank you, Steve

bertgrower
Posts: 173
Joined: 2 Jun 2017, 6:47pm

Re: Rust removal/painting

Postby bertgrower » 4 Aug 2017, 3:18pm

I managed to remove rust from a front mechanism that was seized up due to the lack of mudguards .

Once removed and the addition of WD40 later some Weldtite – TF2 Ultimate Lubricant Spray Can – with Teflon Surface Protector the front mechanism is now free moving.



http://www.apartmenttherapy.com/how-to- ... oaf-141206

https://www.google.co.uk/search?q=Vineg ... e&ie=UTF-8

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Gattonero
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Joined: 31 Jan 2016, 1:35pm
Location: London
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Re: Rust removal/painting

Postby Gattonero » 4 Aug 2017, 3:53pm

steveparry wrote:I've just bought a lovely Thorn Sherpa which was built up in 2010ish and hardly used since by the owner. I see there is rust on the paintwork on the chain stay end: https://photos.app.goo.gl/JrxhrqhMllBkHbUw2 Any advice on how to strip it back, remove the rust and repaint? I know if you buy a new Thorn they supply a pot of paint to touch up but I haven't got one and on SJS website none is listed... Thank you, Steve


The rest of the paintjob looks ok, but I would inspect the ends of all stays, under the BB, all the cable stops, and essentially every part where the water or moisture may be retained.

On that area, given the bike was hardly used and it seems in good nick, I'd go for the full lot by using a wire wheel, sandpaper to the bare metal and smooth transition to the original paint, then primer, then two coats of laquer, then the clear coat.
Being a small area it can be done by brush in little time.

The color looks to me like RAL3020 ("traffic red")
It is by riding a bicycle that you learn the contours of a country best,
since you have to sweat up the hills and coast down them.
Thus you remember them as they actually are...

alexnharvey
Posts: 625
Joined: 10 Jan 2014, 8:39am

Re: Rust removal/painting

Postby alexnharvey » 4 Aug 2017, 4:51pm

That's very small. Could you stabilise it with kurust or similar and then touch up rather than taking away more paint?