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  #11  
Old 12-01-17, 17:58
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Lachlan13 Lachlan13 is online now
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Default Re: T6 California roof corrosion has started

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Originally Posted by Yellow Campervan View Post
I think the T4 was galvanised, is that right?
No they were not all galvanised. It's my understanding that some early ones may have been. Why would any manufacturer go to the trouble of galvanising a van ?

Chow mein kampf ...
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  #12  
Old 12-01-17, 22:10
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Default Re: T6 California roof corrosion has started

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Originally Posted by Van-Blanc View Post
Nothing is galvanised on a T5/T6.

Are you sure? I have done a few dent repairs where i have had to weld to pull out and sanded through the visible galvanized layer on all t5s i have done.
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  #13  
Old 13-01-17, 05:03
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Default Re: T6 California roof corrosion has started

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Originally Posted by RattyMcClelland View Post
Are you sure? I have done a few dent repairs where i have had to weld to pull out and sanded through the visible galvanized layer on all t5s i have done.
Yes, my mistake, you are right there but it wouldn't be hot dip galvanising but part of the paint process. I presume they electrogalvanise before paint.

However the pop up roof is aluminium which can lead to galvanic corrosion problems if the conductivity of different exposed metals are bridged by water. However this doesn't appear to be the problem here. As I understand you can get paint problems with aluminium if the metal isn't dry (I believe ally sheet can have microscopic porosity) and it should be etch primed to get the best bond. Failure in this area surely wouldn't just manifest itself in neat lines around the edge.

Saying nothing doesn't mean I have no opinion.
It may mean I don't think you are ready to hear it.
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