Attention - New Rust Point - Front Arches Chassis

[willni]

Folks,

Just letting you all know for those that keep cars for long periods of time. When I was removing the foam triangles under the front arches I noticed the following on the body:

The plastic arch liners are rubbing through the token amount of paint VW have sprayed on at the factory and leaving it as a bare metal exposed area on the body, and will undoubtably become a problem later on.

I'm currently repairing mine but not sure what to put over it once neutralised and resprayed, seam sealer?

[Jace]

once sealed maybe something like Helicopter tape ?

[Adam T7]

Aren’t (according to the brochure) body panels galvanised and (this is from my dim and distant past schooldays 45 years ago) a galvanised surface can ‘heal’ itself?

[coolhandluke123]

once sealed maybe something like



Helicopter tape ?

After all the issues with the foam on the MK5 wheel arches you'd have thought VW might have learnt a lesson.

[willni]

Galvanised surfaces can still corrode unfortunately, and abrasion can remove the zinc coating from the steel.

One side reacted fairly heavily to the rust neutraliser and the other had a much smaller reaction, I resprayed with graphene primer and put a bit of underseal over it for now, but will be going back later and adding better protection. Probably that helicopter tape Jace recommended.

I considered something like dynamat sound deadening but concern that the bituminous material could hold moisture.

[Adam T7]

I’ve used helicopter tape on my bike where the chain can potential hit the carbon fibre chain stays. Zero damage after 11 years and 100% water and oil resistant.

[Tractor Dave]

Dinitrol 447 is very good.

[EB2019]

Thanks for the info Willni, will keep an eye out for it. 

[Mikeyd1]

once sealed maybe something like Helicopter tape ?

what your mileage mate . I hate finding this sort of stuff on my pride and joy I’m also very fussy about my car . I’ll be checking mine soon as was planing to dynax under arches in late summer .

[willni]

I'm on 32k miles.