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Old 03-08-2018, 09:17 AM   #1
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Alcoa clear coat peeling

I have a 2016 International. While on the roof doing a solar install I noticed the Fantastic fan was no sealed at the factory. I also noticed a scratch I had seen before of the top front skin has started to peel. I think this is the Alcoa clear coat? Is there an easy way to repair this DYI? I assume I should do other scratches as well. I was going to take it into the dealer and have them do the Fan missed at the factory and look at this but I assume there will be some cost to it.

thanks
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Old 03-08-2018, 09:39 AM   #2
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Learn to do the caulking yourself.
At a certain point, it becomes an annual must do...
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Old 03-08-2018, 09:49 AM   #3
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Following.

I have several places where it looks like something dropped on the trailer and ran down a couple of inches and the clear coat is missing. I was thinking of getting some automotive clear coat spray and trying to touch it up.

I think I would lightly wet sand with very fine grit (2000, maybe), spray, and then wet sand again and polish. I'd be interested in hearing what anyone has done that worked (or didn't, for that matter).

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Old 03-08-2018, 12:20 PM   #4
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I can do the caulking no problem. I am taking it in for the principle of it.
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Old 03-08-2018, 12:24 PM   #5
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Everything I have read so far about the Plasticoat and Alcoa ( In Airstream literature ) says not to sand, basically strip, clean, paint. It can't be that hard. I mean, Airstream fixes them all the time and automotive paint and dent guys do amazing stuff now.
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Old 03-09-2018, 12:30 AM   #6
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Look up 'Nyalic'.
http://www.nyalic.com

keeping up with the loss due to environment and 'oops'.
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Old 03-09-2018, 04:18 PM   #7
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overspraying the clearcoat is not advised... it won't bond into the old coating... instead it will frost it and make it come off...

The only way to take care of it... is to strip, alumaprep, alodine, and then clearcoating... or painting... which then will last actually longer than the clearcoating so we have found...

One also can use the self etching brands of paint that is made for aircraft also... their is no clearcoat for aircraft alu... but, then again the color will cover up and seal a lot of blems...

Good luck if your in calif to get it strip'd... as the environmental nazi's don't like the chemicals used to strip, protect and coat alu...
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Old 03-09-2018, 04:36 PM   #8
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Thanks for the replies. I was thinking / wondering if simple automotive clear coat repair would work? I can really think why not? remove the flake skuf the area plus an area for feathering as Al suggest. mask of the area and then hit it with something like EM K2? Or Nyalic?
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Old 03-10-2018, 09:15 AM   #9
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Not a lot of flex in automotive clear coat -- steel does not expand and contract with temperature like aluminum does. It might work fine, though, considering the size of the area in question.

All Airstreams eventually acquire "character" - a sure sign that a trailer is used as intended...
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Old 03-10-2018, 09:26 AM   #10
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Quote:
Originally Posted by GM Airstream View Post
overspraying the clearcoat is not advised... it won't bond into the old coating... instead it will frost it and make it come off...

The only way to take care of it... is to strip, alumaprep, alodine, and then clearcoating... or painting... which then will last actually longer than the clearcoating so we have found...

One also can use the self etching brands of paint that is made for aircraft also... their is no clearcoat for aircraft alu... but, then again the color will cover up and seal a lot of blems...

Good luck if your in calif to get it strip'd... as the environmental nazi's don't like the chemicals used to strip, protect and coat alu...
As in strip the whole trailer to fix a couple of 6 sq. in. spots? I'm looking for a spot repair technique. Maybe there isn't one.

Al
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Old 03-11-2018, 12:58 AM   #11
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Actually.... if you alodine the trailer hull... you don't need to really clearcoat or paint it... as the alodine will last up to 12 years out in the open.. and prevent any corrosion.... I have never understood why airstream didn't spec the treatment out... I know that avion and several of the other metal hull trailer makers anodized theirs.. and they never need/or do they have any problem with their skins .. even after 30 some years...

Alodine is a cheep and simple process to protect alum.... a gallon of it would do the whole trailer... but, the environmental nazi's have gone nuts over using it... as it does a chromate salt conversion... and yes you can make the trailer golden... but they also sell clear chromates so it stays alum looking... and in the end.. can be re-applied simply by re-cleaning and coating similar to washing with water... matter of fact its water soluable... when going on... but, once dry... gives the alu all the protection for years.. and can be clear coated or painted over also... if you want a belt with suspenders...
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Old 03-11-2018, 08:26 PM   #12
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You can always buy a can or two of Plastikote from the Airstream Store. Won't be as glossy as the factory applied coating but it will protect the underlying metal.
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Old 03-12-2018, 08:26 AM   #13
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The current finish is not plastikote. Note sure why I would apply that on top o a peeling area.
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Old 03-12-2018, 09:01 AM   #14
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Plastikote flexes. It may work, it may not.
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