Blesters on the body skin of my motor home

Oct 22, 2024
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Hi I have blisters on the skin on my Motor Home are they repairable,
and if so how , I have looked on a lot of sites but no joy.
If anyone out there can help I would appreciate it , thanks
Sorry it's not very clear, it's on the right near the light cluster.
 

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Nov 11, 2009
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Welcome to the Forum. Sorry to hear of the problem with your motorhome. Even using zoom you are too far away from the vehicle to see anything in your photo. Can you get much closer and try some shots from different angles please.
 
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Mel

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Mar 17, 2007
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Welcome to the forum. Sorry to hear of this. Folks on here have recommended a few different body work specialists in the past. If your van is not still under warranty you may want to consider them. Roughly whereabouts are you and how far would you travel?
Good luck
Mel
 
Oct 22, 2024
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Welcome to the Forum. Sorry to hear of the problem with your motorhome. Even using zoom you are too far away from the vehicle to see anything in your photo. Can you get much closer and try some shots from different angles please.
Hi thanks for your. quick reply , when I bought it there were a couple of small ones on the skin , but two years later they
have grown. and look very unsightly ,I'm not sure. What has caused it , and I don't know how the panel is made up , I can't
see any damp , so I'm a little stumbled..
Welcome to the forum. Sorry to hear of this. Folks on here have recommended a few different body work specialists in the past. If your van is not still under warranty you may want to consider them. Roughly whereabouts are you and how far would you travel?
Good luck
Mel
South East Essex , thank you the white bits are the blisters .
 

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Jan 3, 2012
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Hi Flash Harry Welcome to the forum very sorry to hear this i would say someone will be able help you but not me you need a body work specialist but keep posting .
 
Jul 18, 2017
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Thanks buddy, what was the procedure
Looking at those pictures, that definitely seems to be corrosion and if it is corrosion, I doubt if any body shop would touch it as they would be worried about comebacks.

With our caravan, we traded it in as soon as possible. On our car they had to replace the whole bonnet as no body shop would do a repair due to any comebacks. The bonnet was aluminium.

When was the vehicle purchased as that may help resolving the issue? However I think you may need to get expert advice on this.
 
Jul 18, 2017
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What are you specific reasons for doubting a skilled vehicle technician or other other person with metallurgy experience would find difficulty in repairing the superficial damage
Simple they are experts and if they state it needs to be replaced as they cannot guarantee any repair, who am I to argue? I am talking from experience with a caravan and also a motor vehicle.
 
Jun 20, 2005
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What are you specific reasons for doubting a skilled vehicle technician or other other person with metallurgy experience would find difficulty in repairing the superficial damage
The Problem lies in the chemistry of aluminium. Once the corrosion , a chemical reaction has started it is nigh impossible to get rid of it 100%. No body shop worth their salt will take the job without loads of caveats. It may look good for a year or so but the blisters will probably start again.
 
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Jul 18, 2017
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An "expert" that has no knowledge of aluminium repair techniques no doubt
In our case the expert was recommended by a good authority who had a vested interest in the repair. I had to accept that they used experts. Even cutting aluminium and then putting in a patch cannot be guaranteed.

As you are probably aware aluminium stretches and cannot rectify a "stretch". If you are unsure why not speak to an expert?
 
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The Problem lies in the chemistry of aluminium. Once the corrosion , a chemical reaction has started it is nigh impossible to get rid of it 100%. No body shop worth their salt will take the job without loads of caveats. It may look good for a year or so but the blisters will probably start again.
Yep that is what happened with us. Thanks goodness for CRA 2015.
 
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The Problem lies in the chemistry of aluminium. Once the corrosion , a chemical reaction has started it is nigh impossible to get rid of it 100%. No body shop worth their salt will take the job without loads of caveats. It may look good for a year or so but the blisters will probably start again.
Times have progressed,even at 71 I've witnessed new tech and methods being used.
 
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Nov 11, 2009
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Thank you all for your helpful advice . I shall try to find
a body shop that is up to the job , even if I have to replace
The whole panel . once again thank you all for your help.View attachment 7818
Try these as they have an excellent reputation. They repaired a friends motorhome which had developed extensive damp at the rear. (End kitchen). The cause being the dealers repeated attempts at what were basically bodged repairs. The bill came to £10k but the work was done brilliantly and in 18 months the mh has been A1. They also repair Forumites caravan which had a nasty bang on the rear side. Think that was an insurance claim. Worth considering.


 
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Nov 30, 2022
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Everyone has assumed this panel is aluminium, it may of course be GRP, and if so those areas can be ground out and filled.
Either way I would recommend you find out who your local coach firm use for their body repairs. Motorhomes, caravans and coaches are very similar in construction so they will have first hand knowledge of suitable repairs.
I would not go to a car body workshop as they will not have the in depth knowledge of a coach/bus repair business.
Some years ago I damaged the rear (GRP) panel on my M/H, I visited my local coach repair workshop to get a quote as I envisaged an entire new rear panel. They repaired it for less than my insurance excess!
 
Sep 12, 2021
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Try these as they have an excellent reputation. They repaired a friends motorhome which had developed extensive damp at the rear. (End kitchen). The cause being the dealers repeated attempts at what were basically bodged repairs. The bill came to £10k but the work was done brilliantly and in 18 months the mh has been A1. They also repair Forumites caravan which had a nasty bang on the rear side. Think that was an insurance claim. Worth considering.


I swear by these guys, their work is first class.

Steve
 

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