Rust Issues

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AintSheSweet
Posts: 172
Joined: Mon 01 Feb 2010, 10:00
Location: Boksburg

Rust Issues

Post by AintSheSweet » Tue 26 Apr 2016, 14:16

Hi All,

I need some information please.

I have a bit of a rust issue in certain areas on my mk5 Cortina XR6. Especially just beneath the front windscreen (Rhs).

I was told that it is because the window rubber was not fitted properly, so the water just sits there and eventually rust is formed.

I am in the process of getting my car resprayed and the rust issues sorted. I have heard many people say that there is a treatment for the rust, but no one can remember what it's called.

Does anyone here know what I can use to "kill" the rust?

Also, can I maybe drill a hole down the fender area to allow the water to pass through and not just collect there?

Any info will be appreciated.

Thanks,
Sheldon

Kermit
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Re: Rust Issues

Post by Kermit » Tue 26 Apr 2016, 21:08

The windscreen rubber can only go in one way, so the rust is not due to incorrect fitment. Chances are there was an open seem or even a small bare spot. You will always have water stuck in there. Bare spots form over time as your car flexes and eventually rubs through the paint. Also be very aware of what sealer is used on your car. People tend to use general purpose silicon instead of neutral silicon. DenBraven makes a good one. If your sealer has an acidic or ammonia smell, throw it in the bin. Keep it far away from any metal. What I found over the years to help with rust is windscreen primer that is used to fit modern car screens. I used it frequently for over 14 years. Did my own car a few years ago on a spot that was rusted through. Never had an issue again. Sorry for the long winded post, but I have allot of experience with windscreens and rust.
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RASSIE
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Re: Rust Issues

Post by RASSIE » Thu 28 Apr 2016, 07:47

That is a problem from factory.
They all rust on that spot.
Rassie.
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AintSheSweet
Posts: 172
Joined: Mon 01 Feb 2010, 10:00
Location: Boksburg

Re: Rust Issues

Post by AintSheSweet » Thu 28 Apr 2016, 09:16

Thanks Kermit and Rassie.

@ Kermit, the problem is not on the windscreen section. It's a panel just below the windscreen. I will have to cut out the rust and fill it, but what can I fill it with to avoid the rust coming out again?

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Johann65
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Re: Rust Issues

Post by Johann65 » Thu 28 Apr 2016, 16:34

Sand down the rusted area down to the bare metal. Weld the hole closed and clean up. Treat the area with "POLYCELL End Rust" rust converter and primer. Then spray with undercoat and finish off with required spray paint finish. :mrgreen:
PS! treat both sides of the metal 8O 8O
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pietpetoors
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Re: Rust Issues

Post by pietpetoors » Fri 29 Apr 2016, 09:12

PS! treat both sides of the metal 8O 8O
Very important, most rust start from the inside, not the outside. If you don't treat the inside the rust will be back in a year or two.
Only Dead Fish Go With The Flow!

AintSheSweet
Posts: 172
Joined: Mon 01 Feb 2010, 10:00
Location: Boksburg

Re: Rust Issues

Post by AintSheSweet » Wed 04 May 2016, 15:51

Thanks Gents! Appreciate the advise.

Will give it a try.

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motor1
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Re: Rust Issues

Post by motor1 » Wed 04 May 2016, 22:41

Agreed with the advice posted already, rust comes from within and almost always what you cannot see is worse than what you can see. We've had a few Cortinas in the family previously, all 3,0 sedans and a 1600 bakkie, all had issues on the same spot. Check the other side as well, it normally occurs both sides, poor design I suppose. Another spot to check is inside the boot also under the back screen, and the corners of the back screen.

Post some pics of the car, still have much love for these Tinas!
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