Home

   Log in or Register



Insurance Quotes
forums Campsite Search Comp Directory tips virtual brochure Profile
Tent and Awning Reviews Competitions Caravans and Motorhomes For Sale Shopping Diary Advent Calendar

Advertisement

Message Forums
Welcome Guest Register Login Search The Forum Posts Since Last Visit
 Reception - All Forums
   Caravans and Caravanning -  Caravan Repairs, Servicing and Maintenance 		Share   Post on X / Twitter  Share on Facebook  Email  Printer Friendly Version Print
Subject Topic: pin holes in aluminium Post Reply Post New Topic
Persondksniper
13/10/2013 at 7:49pm
 Location: ripon north yorks
 Outfit: autotrail comanche coachbuild View dksniper's Profile View Profile   Reply to dksniper Reply   Quote dksniper Quote  
Joined: 08/10/2013

Standard Member
Standard Member

Forum Posts:   17
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
I have purchased jb weld epoxy resin to do the repairs.Probably a silly question but are repairs best done on outside of skin?

Cheers Dave


PersonGrampian91
13/10/2013 at 8:16pm
 Location: Midlands
 Outfit: Mondeo Avondale Gram View Grampian91's Profile View Profile   Reply to Grampian91 Reply   Quote Grampian91 Quote  
Joined: 11/5/2008

Diamond Member
Diamond Member

Forum Posts:   6893
Site Reviews Total: 2
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
If there is corrosion on the inside then you need to treat that otherwise it will continue to eat its way through.


Persondksniper
13/10/2013 at 9:05pm
 Location: ripon north yorks
 Outfit: autotrail comanche coachbuild View dksniper's Profile View Profile   Reply to dksniper Reply   Quote dksniper Quote  
Joined: 08/10/2013

Standard Member
Standard Member

Forum Posts:   17
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
The holes are from chemical reaction with damp timber from the inside, so treat from the inside after cleaning, fine sanding etc. ?
I have stripped rotten wood, it has revealed 4 pinholes, 3 in offside roof, 1 in rear wall. I can access them from either inside or outside, or both even, just unsure which is best having not done this type of repair before.


PersonAl+Mel
14/10/2013 at 8:05am
 Location: Hants
 Outfit: Fleetwood Heritage 640 EB & ML270 View Al+Mel's Profile View Profile   Reply to Al+Mel Reply   Quote Al+Mel Quote  
Joined: 18/9/2010

Platinum Member
Platinum Member

Forum Posts:   1312
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
You could bond some small plates (ally drinks can offcuts?) onto the inside of the damaged area with Sikaflex, then fair up the squeezed out stuff on the outside before it cures. Degrease it all with plenty of meths inside and out before you start and you should get a near invisible mend.


Persondksniper
14/10/2013 at 8:15am
 Location: ripon north yorks
 Outfit: autotrail comanche coachbuild View dksniper's Profile View Profile   Reply to dksniper Reply   Quote dksniper Quote  
Joined: 08/10/2013

Standard Member
Standard Member

Forum Posts:   17
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
Thanks Al + Mel. Didmt think of that.


Advertisement



Persongedvan
14/10/2013 at 5:35pm
 Location: newton le willows
 Outfit: coachman geniuse View gedvan's Profile View Profile   Reply to gedvan Reply   Quote gedvan Quote  
Joined: 13/5/2011

Standard Member
Standard Member

Forum Posts:   82
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
Hi i had quite a few large holes in my roof,my friend and i tuck the boarding of from the front inside of the van to dry it all out,then when dried we sanded from outside and made the holes a little bigger,the holes where a little further back from the boarding we had taken off so could not treat from the inside without taking the boarding off completely in the middle of the van so we pumped soudle fixall into the hols and placed a large sheet of white plastic sheeting over the top stuck down with soudle,my friend was a big help fixing all the wood work back to finish the job from inside, looks as good as new now,if you would like to see the photos i posted them on this site under fix my roof on holidays good luck ged    

-------------
ged vanden hoek


Personmichael
14/10/2013 at 10:19pm
 Location: Lancashire
 Outfit: Caravan now Sold View michael's Profile View Profile   Reply to michael Reply   Quote michael Quote  
Joined: 30/6/2002

Diamond Member
Diamond Member

Forum Posts:   23517
Site Reviews Total: 1
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
Quote: Originally posted by dksniper on 13/10/2013
I have purchased jb weld epoxy resin to do the repairs.Probably a silly question but are repairs best done on outside of skin?

Cheers Dave
osmosis causing the pin holes needs to be sealed from the inside if possible.use a alloy plate and plenty of sealer.


-------------
the only silly question is the one you do not ask.


Personbirder99
15/10/2013 at 6:07pm
 Location: Cambs
 Outfit: Tin tent diddy tent BIG tent View birder99's Profile View Profile   Reply to birder99 Reply   Quote birder99 Quote  
Joined: 24/9/2010

Diamond Member
Diamond Member

Forum Posts:   1847
Site Reviews Total: 3
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
I'm not sure what you mean by the pin holes being caused by osmosis as I can not imagine osmosis happening through an impermeable membrane such as aluminium. Maybe I am missing something but I had always understood that the aluminium corrosion was a form of galvanic action due to water on the unprotected surface setting up a localised galvanic cell normally in the vicinity of a steel nail or staple.

-------------
'A sure cure for sea-sickness is to sit under a tree'


Personmattlad
15/10/2013 at 8:00pm
 Location: Worcestershire
 Outfit: Defender 90 and MyWay Voyager Raid View mattlad's Profile View Profile   Reply to mattlad Reply   Quote mattlad Quote  
Joined: 27/9/2006

Diamond Member
Diamond Member

Forum Posts:   2883
Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
Quote: Originally posted by Grampian91 on 13/10/2013
If there is corrosion on the inside then you need to treat that otherwise it will continue to eat its way through.




I'm sure the OP said it was aluminium. Aluminium oxide forms a very hard crust that will protect the metal underneath and prevent further corrosion.


-------------
Love a lot. Trust a few. But ALWAYS paddle your own canoe!!
Minds are like parachutes:- They only function when they are open!!!
Those who talk don't know.
Those who know don't talk.


Personmichael
16/10/2013 at 10:09am
 Location: Lancashire
 Outfit: Caravan now Sold View michael's Profile View Profile   Reply to michael Reply   Quote michael Quote  
Joined: 30/6/2002

Diamond Member
Diamond Member

Forum Posts:   23517
Site Reviews Total: 1
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

I'm not sure what you mean by the pin holes being caused by osmosis as I can not imagine osmosis happening through an impermeable membrane such as aluminium

yes any long standing damp on the inside of the van will look for a way out,hence the pin holes.



-------------
the only silly question is the one you do not ask.


Advertisement



Personbirder99
16/10/2013 at 12:41pm
 Location: Cambs
 Outfit: Tin tent diddy tent BIG tent View birder99's Profile View Profile   Reply to birder99 Reply   Quote birder99 Quote  
Joined: 24/9/2010

Diamond Member
Diamond Member

Forum Posts:   1847
Site Reviews Total: 3
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0
That is not osmosis - osmosis is the flow of a solvent (could be water) through a semi permeable membrane to equalise the osmotic pressure between two fluids. My memory of entropy and thermal dynamics is a bit faded but that is a basic summary of what happens.

I'm 99% sure the pin holes are caused by galvanic action but if I get a few minutes I will double check. Assuming galvanic action the only way to stop it is to prevent a cell forming and the obvious way is to exclude water and then as Mattlad says above the oxide of aluminium will form a protective layer on the surface.

-------------
'A sure cure for sea-sickness is to sit under a tree'



In order to post a reply you will need to register, or if already registered please log in here

Prev       Next
Quick Links - All Forums - Caravan Repairs, Servicing and Maintenance - Top of Page

Printer Friendly Version Printable version      Share   Post on X / Twitter  Share on Facebook  Email


Latest News, Discounts and Competitions  see all...

3705 Visitors online !

Free UKCampsite.co.uk Window Sticker  -  Recommend to Friend  -  Add a Missing Campsite

[Message Forums]  [Caravan Sites & Camping]  [Company Listings]  [Features / Advice]  [Virtual Brochure]  [Shop!]
[Reception]  [Competitions]  [Caravans & Motorhomes For Sale]  [Event Diary]  [Contact Us]  [Tent Reviews] 



Please note we are not responsible for the content of external sites & any reviews represent the author's personal view only. Please report any error here. You may view our privacy and cookie policy and terms and conditions here. All copyrights & other intellectual property rights in the design and content of this web site are reserved to the UKCampsite.co.uk © 1999 - 2024


Advertisement
Advertisement


UKCampsite.co.uk
2024 Advent Calendar

Advent Calendar

24 Daily Prizes PLUS a Christmas Day Star Prize worth £999

Request a Reminder