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[albitz]

Imo if it on the underside of the arch you can sort it easily yourself.After last winter the paint on the underside lip of both my rear arches had flaked and blistered. I cleaned of the loose paint etc. treated with rust neutraliser (Bilthamber is best although expensive), then carefully masked the area and sprayed the underside lip part with gravigaurd.Its the type of slightly crinkled finish you sometimes see on sills etc. to protect paint from chipping.Then sprayed original colour and lacquer on top of that. Peel the edge of masking tape back slightly to prevent an obvious step from forming.Taking your time and being patient is the key to a good finish.
I was well pleased with the finished job on mine and I dont expect any further problems as the gravigaurd will stop chipping/ flaking of paint which is where the rust would probably start.

You will need to scrape the paint off where the rust is then sand the rust away as much as possible,then proceed as described earlier Dan.Painting rust killer on top of the paint wont kill the rust. My method is similar to Geoaffs other than using graviguard (which you paint the original colour over the top of) rather than hammerite.

It hasnt blistered the paint though albert. Would i stil be able to use the rust treatment as it isnt visible?. It is on the underside

[omegod]

I had some blistering on the underside of my elites rear arches. It was a good 5mm away from the side so I did it myself.

I took the paint off and sanded the rust back to bare metal. I used kurust to treat it then a few coats of black hammerite, then underseal. Luckily for me it was only the underside, and the car is nocturno blue so the black isn't much of a contrast.

Not as good as a body shop but alot less money, and will save the arches for a long time yet. I always blast the inside of the arches when I wash the car as crud collects there, stays damp and promotes rust.

My mv6 had been professionally done before I got it, and is like brand new.

Seconded as I did the same and masked outer 3 mm of the arch lip, ground the surface rust off, rustkure, primed then undersealed the shit out of it, 3 yrs on it has not come back through! Often what looks like rust is just staining from rust further in and this will t cut off. mmight as well give it a go as there is no way I am spending bodyshop money on a miggy given what they are worth

[Omega_Dan]

cheers mate im going to have a go at it tomorrow. My brother is in the know more than me so going to do it at his house tomorrow after stopping off at halfords

[Omega_Dan]

I had some blistering on the underside of my elites rear arches. It was a good 5mm away from the side so I did it myself.

I took the paint off and sanded the rust back to bare metal. I used kurust to treat it then a few coats of black hammerite, then underseal. Luckily for me it was only the underside, and the car is nocturno blue so the black isn't much of a contrast.

Not as good as a body shop but alot less money, and will save the arches for a long time yet. I always blast the inside of the arches when I wash the car as crud collects there, stays damp and promotes rust.

My mv6 had been professionally done before I got it, and is like brand new.

Seconded as I did the same and masked outer 3 mm of the arch lip, ground the surface rust off, rustkure, primed then undersealed the shit out of it, 3 yrs on it has not come back through! Often what looks like rust is just staining from rust further in and this will t cut off. mmight as well give it a go as there is no way I am spending bodyshop money on a miggy given what they are worth

The cost of the bodyshop does make it difficult to consider as even with the extras and miles on my car id struggle to get £800 for it probably

[Agemo]

If only the rear wings were bolted on 

[elitedave]

just filler and a paint wont sort it for long even a pro job. only way is to replace metal. there aint no replacment arch panels i know of for omega advalible

so only way to job proper is to cut em out and careful weld in some new metal very carefuly from another car that had decent arches

[albitz]

If the problem has gone beyond surface corrosion, I would agree tend to agree. If no perforation of the metal - clean it off,treat with neutraliser, then repair cosmatically imo.

[Webby the Bear]

If you can't see it Dan, might be worth having a go at treating it yourself. Sorry mate didn't realise you couldn't actually see it! Mine was spread from underside right up to the top of the wheel arch outer. 

If you do have a go make sure you properly cover up the good paintwork on the rest of the car... don't to extend the trouble further! 

[Omega_Dan]

Started the rust removal today. sanded down the area on both sides with a medium grade sanding block and small wire brush. Did the inner edge of the arch aswell until i broke the blister and removed most of the rust. To be fair to the car where wasnt alot at all. Applied Kurust and then re applied another 2 times.

Next is to sand off the Kurust and primed ready for paint followed by underseal.

[Webby the Bear]

Good to see it's well out of view mate! Good luck. Looking forward to pics if you can post each step... hopefully you make better job than me 

[Omega_Dan]

will have it finished by tomorrow so will upload some more pics.

[Webby the Bear]

will have it finished by tomorrow so will upload some more pics.

 

[Omega_Dan]

Kurust did the job well. you can clearly see the difference. Back to a nice smooth metal surface. Had to clean the Kurust soloution off and sand it some more.




Then added the primer to give as smooth finish as possible. Will give it another coat in the morning.



The black marks are just a little left over underseal.

[Omega_Dan]

FURTHER UPDATE.


Well i think ive done an ok job.

After the filler dried i filled it again, waited to dry. Applied a spray of paint and then laquer , again when dry i applied alot of underseal to the inside of the arch as well as to the work i had done on the underside of the arch. may seem pointless painting it but thats just me.

Few finished pics, excusing my ugly mush




I need to give it another coat of underseal when its dried and then we shall see in the coming months or hopefully years how good of a job i did

[dbr]

the arch rubbers that are on rover 216 can be cut down and put over the rear arch area as a prevention