Author Topic: Rust starting to appear on rear arches  (Read 175 times)

bus_ter

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Rust starting to appear on rear arches
« on: August 11, 2020, 04:26:32 PM »
I've got the beginnings of rust showing on the bottom of the rear wheel arches. Does anyone recommend an easy way to try and treat/repair this?

I'm worried if I sand it down and spray paint I'll make a mess of it.

sparky Paul

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Re: Rust starting to appear on rear arches
« Reply #1 on: August 11, 2020, 04:59:58 PM »
How bad is it? Have a good feel around the rear of the metal, see if it's scabby behind, or if the metal looks like it has 'swelled'... if it is, and feels like rot, proceed with caution, and don't start prodding.

Usually, it's just surface rust that migrates under the paint from chips on the edge of the arch. Much easier to deal with.

bus_ter

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Re: Rust starting to appear on rear arches
« Reply #2 on: August 11, 2020, 07:23:29 PM »
Have a look..

sparky Paul

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Re: Rust starting to appear on rear arches
« Reply #3 on: August 11, 2020, 07:42:52 PM »
On the face of it, it looks like a bit of surface rust. To be certain, you might have to detach the plastic liners, wash the muck out and have a feel around the back, see if it feels lumpy.

The trouble is, right down at the bottom there is always a little muck trap that can rot the panel from inside.

Jocko

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Re: Rust starting to appear on rear arches
« Reply #4 on: August 11, 2020, 07:45:15 PM »
My wheel arches are almost rotted away.

bus_ter

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Re: Rust starting to appear on rear arches
« Reply #5 on: August 12, 2020, 05:21:14 PM »
My wheel arches are almost rotted away.

Have you ever tried to treat/repair it?

Jocko

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Re: Rust starting to appear on rear arches
« Reply #6 on: August 12, 2020, 06:21:04 PM »
I sanded it down, put Kurust on it then painted with Hammerite

bus_ter

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Re: Rust starting to appear on rear arches
« Reply #7 on: August 12, 2020, 08:34:36 PM »
How long ago and how's it holding up?

Jocko

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Re: Rust starting to appear on rear arches
« Reply #8 on: August 12, 2020, 08:54:00 PM »
Rubbish. It was done last year and is worse than before I started. It needs the rear bumper off and an orbital sander to clean it down. I'll post photos tomorrow if I can remember (lots on my plate at the moment).

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