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Old 12-24-2015, 06:51 AM   #2311
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I also had bad filiform around the whole belt line. Some spots it was almost an inch high.
Rather than try to touch up all of it, I painted the whole thing. I used hammer tone spray paint to hide some of the deeper corrosion. The first go looked pretty good but I then decided to get a plastic pin stripe kit to finish it off. Attachment 254516Attachment 254517Attachment 254518

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Old 12-25-2015, 06:28 AM   #2312
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Sb55: that's a genius solution, and looks great! Joe
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Old 12-27-2015, 10:12 PM   #2313
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Very nice job and looks awesome.
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Old 04-25-2016, 03:17 PM   #2314
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Soda blasting to remedy corrosion

In the UK we are being offered soda blasted rear light surrounds which are then sprayed with Corrosion X. Has anyone in the US tried this remedy. My local soda blaster will selectively do very small areas on the van which will surely look better. Discussion welcomed. Paddy.
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Old 05-05-2016, 07:43 PM   #2315
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Whoops. Forgot the finished shotAttachment 254522

HEY!!!!!! Nice job!!!!

I did exactly the same think to my then 4 Y/O 2006 19 CCD. Right down to the hammer tone paint and dual pinstripes.

Only difference was the striping. I used a 1/4" with a 1/8" gap and then another 1/8" strip.

Two great minds!!


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Old 05-08-2016, 12:25 PM   #2316
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Had the factory thought of this, you wouldn't have to had to do this for them!
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Old 05-13-2016, 10:32 AM   #2317
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An update - I'm now at 2.5 years of ownership of my 2014 bunkhouse - no filliform on my skin anywhere - I think the door handle has a bit of it I think

I've done now 2 applications of the corrosion X spray to all seams and such - die for repeat this summer and I do it yearly not quarterly so far

Monthly washing - yearly application of griots paint sealant (a synthetic wax) and monthly spray on wax and dry after wash..

I go to the beach multiple times per year but live 4 hours from saltwater - always wash trailer thorough upon beach return.

So far so good thankfully
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Old 05-14-2016, 09:18 AM   #2318
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Corrosion Info

I have had 4 Airstreams. Bought new 2015 28' FC last September. The past three units had bad corrosion on the tail light castings and rear bumper. One unit had the seem filiform.
I have kept new unit washed and have polished it. Used Corrosion X on rear bumper and cast tail lights. Good news is the bumper and cast taillights have no corrosion. Several seems have filiform. Interesting that adjacent seems have no filiform. This indicates the filiform is most likely caused by a factory cutting or jigging process that only some seems are exposed to. The process must scrape off the anodize or the clearcoat at the cut.
My wheel rims are 9 months old and are full or pitting corrosion. I will take it to the dealer in two weeks and expect them to replace them. I also bought a new GMC Sierra HD a few eeks after I bought the 28' FC, The aluminum rims on the Sierra shine like the day I bought the truck.
The issue here is AS is using cheap rims. I am going to ask for a cash warranty for the rims and buy after market rims.
I have done the sanding and clear coating of corrosion on the tail light castins and have also removed filifrom. It is a slow process but once you get the hang of it it works. I sprayed the sanded areas with clear coat and the corrosion did not come back.




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Who out there has a newer Airstream (say from 2001 through the current model year) that has the dreaded white spider veins AKA: form fill corrosion?

I know that Dmac had this and I do recall others saying they their shells had issues. I'm wondering now how widespread this issue may be. IMHO, this issue started on my trailer back in spring of 2005. The factory replaced all 4 of my rims and both cast alum tail lights. Not only has the corrosion come back on all 4 rims and both cast alum tail lights, but it now appears to be all over the body on both the exterior alum skins and the outside door trims.

A conversation with support in Jackson Center suggested that I lightly sand down the spots and apply clear fingernail polish to it. Do you know how bad my Safari would look after that given all the locations where this is??!!?? Asked what they felt was causing this because others also have seen this and I got no response.

You can view pictures here:

Airstream Issue

If there are a number of us out there, perhaps it's time we grouped together. I can't believe a $50k RV (and in some cases, a heck of a lot more) is doing this at only 1.5 years old and is 10x worse now a 3.5 years old. Anyone know how to start a class action if there are enough of us??
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Old 05-14-2016, 09:51 AM   #2319
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Quote:
Originally Posted by Kingsmen 33 View Post
I have had 4 Airstreams. Bought new 2015 28' FC last September. The past three units had bad corrosion on the tail light castings and rear bumper. One unit had the seem filiform.
I have kept new unit washed and have polished it. Used Corrosion X on rear bumper and cast tail lights. Good news is the bumper and cast taillights have no corrosion. Several seems have filiform. Interesting that adjacent seems have no filiform. This indicates the filiform is most likely caused by a factory cutting or jigging process that only some seems are exposed to. The process must scrape off the anodize or the clearcoat at the cut.
My wheel rims are 9 months old and are full or pitting corrosion. I will take it to the dealer in two weeks and expect them to replace them. I also bought a new GMC Sierra HD a few eeks after I bought the 28' FC, The aluminum rims on the Sierra shine like the day I bought the truck.
The issue here is AS is using cheap rims. I am going to ask for a cash warranty for the rims and buy after market rims.
I have done the sanding and clear coating of corrosion on the tail light castins and have also removed filifrom. It is a slow process but once you get the hang of it it works. I sprayed the sanded areas with clear coat and the corrosion did not come back.
The nice thing about the Alcoa rims on our 2003 Classic.....no clear-coat.
Cheep?....not so much.

A quick polish every Spring is all thats necessary.

Bob
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Old 05-14-2016, 11:47 AM   #2320
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Kingsman33 you live near the coast and that is a challenge to protect from corrosion. The reason the shell seams corrode so readily is the Alcoa provided clear coat panels are cut to size at the Airstream factory and left exposed to the salt and water. I believe the reason your trailer wheels corrode is because they are not clear coated (or it's very thin) and your truck's rims are.

Bob's rims are probably not corroded for the same reason my cheap rims are not corroded, we don't live in Melbourne Beach, FL. We did have a previous new Airstream with filiform corrosion that it acquired sitting on the dealer's lot for two years next to a winter-salted roadway. That went no further after using CorrosionX.

I have taken an an acrylic clear touch-up felt pen and carefully run it along those shell edges several times to coat them. I use CorrosionX on the seams, exterior fittings, and wheels a few times a year and spray Boeshield T9 (leaves a paraffin wax residue) on the underbody steel parts. So far no corrosion anywhere.

Coastal and northern road salt is a challenge. We plan a month camped next to the beach in Calif next fall, we'll need to get some corrosion repair products I expect. Try to mitigate it with plenty of CorrosionX.
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Old 05-14-2016, 03:01 PM   #2321
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I look at the trailer as an unfinished product by AS. If they would just coat what they cut and punch the filiform issue would be minimized. The fact that there is not more filiform indicates that Alcoa does a good job coating it so that the cutting by AS does not always expose enough of the coating/metal interface to the atmosphere. AS is in a better position to repair their man-made defect at the factory than we are after assembly.

AS response to corrosion formation is that it is a natural process is missing the point here. In this case, filiform occurs on those locations that are a man-made defect.

I also would like to see test data showing that coatings like corrosionX do not damage that exposed interface; yes it prevents corrosion on the AL but does it have side effects?
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Old 05-14-2016, 03:55 PM   #2322
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We have been using CorrosionX and Boeshield T9 for nearly five years, several times a year, and we have no corrosion and no damage to the Alcoa coating or Airstream sealants.

They could touch up the cut panel edges but don't, so thats the way it is. We took an hour and carefully run several coats of clear acrylic touch-up felt pen on them.

We wash our Airstream when needed, and touch up any new nicks and scratches, wax it, treat the shell panel edges, rivets, underbody steel with corrosion preventive products a few times a year. Just part of a preventive maintenance program that includes inspection of exterior and interior, moisture test the plywood subfloor, and check systems operation a few times a year. Fix anything that's broken or loose. Easy to do if you stay ahead of it. A little more difficult if you don't, but everything on these things is repairable and worth the effort.
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Old 05-15-2016, 07:38 AM   #2323
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How do you know the coating/metal interface is not impacted?
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Old 05-15-2016, 08:06 AM   #2324
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We applied CorrosionX on our body shell and Boeshield T9 to the underbody steel of our new Airstream the day we brought it home. The panel edges look like new and there is no corrosion on our Airstream going on five years. No technical data here but the proof is in the pudding.
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