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Rust proofing a new rear arch/wing?

2003 - 2009, roadster, coupe, facelift
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Meds
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Rust proofing a new rear arch/wing?

Post by Meds » Mon May 06, 2024 9:30 pm

Hi guys.
I'm halfway through the rear arch swap, everything removed and i plan to install the new arch tmrw.
It suddenly dawned on me that I should ideally treat the inside of the new arch with something such as Wax/oil?

Any recommendations?
The wing has been fully painted and lacquered in the inside.

Thanks.
E86 3.0si - Koni, Eibach, Eisenmann. viewtopic.php?t=143973
F31 340i MPPSK - Carrying family, bikes, kayaks and everything else.

j3nks79
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Rust proofing a new rear arch/wing?

Post by j3nks79 » Tue May 07, 2024 4:17 pm

POR-15 is what you need
2009 09 Carbon Black Cinnamon E86

Meds
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Rust proofing a new rear arch/wing?

Post by Meds » Tue May 07, 2024 4:30 pm

:thumbsup: I'll check them..
What particular product are we thinking? I dont need to prepare/convert or treat an existing panel as it's brand new and just painted.. I'm thinking of a wax type solution that seals for the future.
E86 3.0si - Koni, Eibach, Eisenmann. viewtopic.php?t=143973
F31 340i MPPSK - Carrying family, bikes, kayaks and everything else.

j3nks79
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Rust proofing a new rear arch/wing?

Post by j3nks79 » Tue May 07, 2024 4:35 pm

This stuff
https://www.frost.co.uk/por15-semi-glos ... gKITvD_BwE

Paint the inner lips and under the plastic brackets.
Also very good to do wheel arches under the plastic liners.
2009 09 Carbon Black Cinnamon E86

Meds
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Rust proofing a new rear arch/wing?

Post by Meds » Wed May 08, 2024 10:07 pm

j3nks79 wrote: Tue May 07, 2024 4:35 pm This stuff
https://www.frost.co.uk/por15-semi-glos ... gKITvD_BwE

Paint the inner lips and under the plastic brackets.
Also very good to do wheel arches under the plastic liners.
Thanks.
I've picked up some Tetroseal underbody sealant that I hope will perform the same function.
I hope. :o
E86 3.0si - Koni, Eibach, Eisenmann. viewtopic.php?t=143973
F31 340i MPPSK - Carrying family, bikes, kayaks and everything else.

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colb
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Rust proofing a new rear arch/wing?

Post by colb » Sat May 11, 2024 12:09 pm

Personally I always use clear Waxoyl in the arches behind the liners and inject spray cavities. Soak the container in hot water to thin it down for good results using the spray gun.
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