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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4266
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Rear door - corrosion in bottom seam
I’ve got corrosion on the bottom inside of the rear/safari door in my Puma. It is on the joint where the door skin is wrapped over along the bottom edge and I think it is from water that gets trapped there by the rubber seal when the door is shut. I understand it’s quite common and I’ve noted it for far too long. Has anyone got any ideas for successfully repairing and preventing it? With it being in a seam and in contact with door seal I can’t think of a way to repair it that will last and look satisfactory. 2007 110 TDCi Station Wagon XS
Post #984440 5th Mar 2023 10:56am
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TexasRover



Member Since: 24 Nov 2022
Location: Paris
Posts: 1251
France 2002 Defender 110 Td5 DCPU Chawton White
Clean it and then apply Fluid Film all over, all over the car in fact, reapply regularly

In my experience you cannot stop the rot with paint, you have to look at a removing dirt and then stabilise.
Post #984448 5th Mar 2023 11:44am
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 736
Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
My 2011 Puma went in the same place.
Try repainting and then covering with a thin strip of helicopter tape along the seam. This will prevent rubbing on the seal, and as it is clear you can keep an eye on any future corrosion.
Check that the drainage holes are clear too.
Post #984457 5th Mar 2023 1:41pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4266
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
It already got a bit flaky so more that just a repaint or treating is required I fear. I was tempted to abrade away as much rust as I could, apply rust converter, then seam seal for a smooth finish before repainting, but concerned ant remaining rot might fester under the seam sealer for bigger trouble down the line. 2007 110 TDCi Station Wagon XS
Post #984531 5th Mar 2023 9:04pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2736
Scotland 
Once the rust is in the seam you’ll never stop it I’m afraid. You might be able to slow down the spread a bit but it will travel between the panels and there’s no way to get effective treatment in there.
Post #984541 5th Mar 2023 10:16pm
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