Peeling Plastic Chrome/Aluminium Trim

[Tony]

Our early Cayenne Turbo is pretty well mint - except that some of the silvery plastic trim at the base of the doors and on the roof is bubbling or actually peeling.
The replacement trim pieces are fairly expensive from Porsche. Does anybody know if this can be stripped and painted or wrapped? Happy to loose the bling look and paint to match the Basalt Black or the other satin black plastic, but I don't really want to launch into this if I'm going to end up having to replace the trim.

Tony

 

[732WKX]

Hi Tony
When i bought mine the trim on the tail gate was bubbly a complete eye sore, anyone behind had a view of very poor build quality.
I questioned Porsche OFC shoulder shrugging ensued (usual story) they only fix corroded body panels not poorly designed trim, i decided to strip the film off only to find the reason it bubbles is the base layer is copper film that gets water trapped behind corrosion starts and end result is the bubbling.
i ended up purchasing the black version (All plastic) and fitter it my self its double sided tap, i seem to remember porsche wanted £80 to fit!!
its still a mystery as to why the silver/aluminium trim is backed with copper foil i thought that was more to do with chroming
regards Gordon.

 

[Tony]

Thanks
thats useful to know I thought I could maybe strip it and paint or wrap it. I want the black anyway so I’m probably going to have to buy the strips.
Tony

 

[AndrewCS]

981 CS … I have similar `bubbling` on a black (not painted) front window trim, I had thought that these were plastic but now assume that it is Aluminium, which is oxidising.

 

[vitesse]

The copper coating may be to do with the following treatment which could be vacuum spatter deposition.

 

[732WKX]

Sounds feasible, bit excessive for a exterior plastic trim! that's exposed to the weather.
Mind you Porsche do like to make things from aluminium which are prone to fail!!! (its a V8 thing)

 

[strummer]

They are aluminium I replaced mine 12 months ago with a set I found on line in America,all in cost was about £120 which was cheap,they can be wrapped or painted,they are very easily damaged when being removed so if doing so to paint/wrap use a hair dryer to loosen the glue first.