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Old 09-24-2013, 07:19 PM   #1653
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My filiform showed up 2 1/2 months after delivery. That was a total surprise.
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Old 09-24-2013, 07:52 PM   #1654
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I have mentioned before but I don't recall if ever replied.

So, I ask again.

What would happen if we pulled a slight vacuum then applied sealant?
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Old 09-24-2013, 09:04 PM   #1655
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I have mentioned before but I don't recall if ever replied.

So, I ask again.

What would happen if we pulled a slight vacuum then applied sealant?
A little thick here CWF. Pull a vacuum on what? The clearance lights?
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Old 09-24-2013, 09:12 PM   #1656
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There are folks who pressurize hull then soap outside to look for "bubbles".

I am suggesting to reverse airflow AFTER identifying serious leaks. THEN use the thinner sealant along those areas. I suspect the reverse pressure, "vaccum"/ low pressure will PULL the sealant into the leaky spots.

Maybe I should patent idea? Nah... Let's just see if this helps...
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Old 09-24-2013, 09:53 PM   #1657
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I just finished reading (most) of this thread from start to finish. I may have missed it because I did fast forward a couple of times, but I never did find anything that would indicate that AS ever stepped up to remedy this problem for past production. Have they remedied it for current and future production? Have they successfully stonewalled the whole thing?


Poppy
They have remedied the Filiform from under the ends of the clearance lights by installing new/improved light gaskets. And, yes past production complaints are dealt with one at a time and very nicely, I might add, with the installation of Classic Trailer cast bases around the clearance lights. Could Airstream have acted sooner on this clearance light issue? Probably. Could they have even come up with a better fix, like say a light with a base that fit the hull of the trailer? Wish they had.

What's important to say here is that you, the owner, have to be proactive if you have a problem and want help with a solution. JC is not going to send out recall notices for every noted problem. A continual problem like the corrosion caused by the lights will be solved when a solution is found. But in the meantime if you want a warranty fix you have to ask.

My experience when asking Customer Service for either technical advice or warranty service is that they have been outstanding. They have gone out of their way to get me parts overnight, to set up warranty work where I wanted, to provide extra parts at my request in case things broke during repair and needed replacement, etc. They really are the best, we all know the trailer is the best, so a few problems here and there with parts used? We should enjoy the trailer everyone would love to own and keep on the company to improve the problem areas. They will listen if we speak in a unified voice.
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Old 09-24-2013, 10:40 PM   #1658
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Bob
I have seen salt corrosion on aluminum pieces on cars from coastal regions but that is different from filform.
Any painted aluminum bodied automobile is a candidate for filiform if the coating has been compromised. I've seen it all my working life.



"My experience when asking Customer Service for either technical advice or warranty service is that they have been outstanding."


Howard....it's too bad Customer Service doesn't build 'em.

Bob
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So when is this..."old enough to know better" supposed to kick in?
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Old 09-24-2013, 11:10 PM   #1659
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Any painted aluminum bodied automobile is a candidate for filiform if the coating has been compromised. I've seen it all my working life. "My experience when asking Customer Service for either technical advice or warranty service is that they have been outstanding." Howard....it's too bad Customer Service doesn't build 'em. Bob
Bob
After 40 years in the automobile business working with Lamborghini,Ferrari.Porsche,Rolls Royce,Bentley,Mclaten,Mercedes Benz, etc etc
Most if not all of these makes have aluminum panels
I have seen very few instances of filform corrosion.
They may all be candidates but of the thousands of cars I have seen less than a handful with fillform and inspect them personally as part of my profession . Just sayin
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Old 09-25-2013, 05:23 AM   #1660
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Thumbs up ...well your 40 and mine are quite different, so be it.

Mo,

That's probably because they were assembled with a modicum of care.... .......and don't use pre-coated Alcoa panels.

Bob
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So when is this..."old enough to know better" supposed to kick in?
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Old 09-25-2013, 08:32 AM   #1661
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magnesium anode

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It's a 5 pound solid zinc anode. I think it will last a while.
Thanks for the link to marine zinc anodes. Would a marine magnesium anode work as well as or better than zinc as it is more anodic?
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Old 09-25-2013, 10:30 AM   #1662
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It just seems upon close inspection that our trailers seem to have filform in the areas where steel screws fasten parts to the aluminum structure ie taillight bezels,grab handles,clearance lights,wheel trim,rear bumper etc.
And on electrified components it seems to get bad quick (tail light housings,clearance lights)c.Could it bee that stringing 12 volt wiring thru out a aluminum on steel grounding structure and energizing it create a problem?
When I changed out my 15 inch wheels for 16's my trailer had less than 800 miles and I noticed filform on the aluminum wheels around every lug nut hole in a perfect circle that each hole had the exact same pattern of corrosion (thats 20 holes).My trailer has never been near the ocean and is hand washed and dried before during and after use(top and bottom),hand waxed at least 3 times a year with a ultra high grade polymer wax (I even wax the frame)and stored indoors when not in use on a plastic covered floor so that moisture does not wick up from the ground.Yes I use Boeshield and Corrosion X but It still forms This leads me to believe alot of this corrosion is caused by electrolysis.Along the seams where the two pieces of aluminum sheeting meet is also a problem area for our trailers and everyone points the finger at sloppy handling of the sheets chipping off the clear coat.But could it actually be the rivet stems being a different metal composition are creating a positive vs negative charge and thus contaminating the area and allowing electrolysis to work its magic and gain a quick foothold in the areas where the clear coat has been chipped.And plcing the structure next to salt water would amplify and speed up the process. Food for thought , just a theory.....
Any degreed electrical engineers out there I would like to here what you have to say.
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Old 09-25-2013, 11:17 AM   #1663
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Mo,

That's probably because they were assembled with a modicum of care.... .......and don't use pre-coated Alcoa panels.

Bob
Bob, I hate to ask this of you again, but I believe you have a past post with an Internet link that explains the different types of corrosions; Filiform, galvanic, etc. I think several of us, maybe most of us, are getting messed up on what types of corrosion and it's possible cause, we're dealing with in some of these issues. Filiform, we know we have; galvanic, it will show sooner or later also, but why and from what?. Electrolysis, and sacrificial zincs for an AL trailer sitting in air???

Thanks Howard
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Old 09-25-2013, 11:38 AM   #1664
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I will admit that I have not read all 117 pages of posts on this thread, but has anyone used the Dupont "Pro-Fusion color Scratch Repair Stick" to cover the cut edges of the aluminum where the corrosion seems to start. They are available in packs of 3 for about $12 at Costco, and are listed as a clear coat scratch repair system. I was wondering if they might be a good way to seal the visible cut edges on my new 2014 FC 20. The ones I have in mind are around the panel which has the rear window in it. It looks to be cut out of a sheet of metal and just riveted in place on the surface of the rear segments. The cut edges are exposed. If not, what does the group recommend for those edges?
I have. The application works quite well although only time will tell if it is durable. Much easier than a spray can or a brush, and economical as well.
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Old 09-25-2013, 11:46 AM   #1665
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Bob, I hate to ask this of you again, but I believe you have a past post with an Internet link that explains the different types of corrosions; Filiform, galvanic, etc. I think several of us, maybe most of us, are getting messed up on what types of corrosion and it's possible cause, we're dealing with in some of these issues. Filiform, we know we have; galvanic, it will show sooner or later also, but why and from what?. Electrolysis, and sacrificial zincs for an AL trailer sitting in air??? Thanks Howard
Galvanic corrosion needs dissimilar metals and a conductive fluid connecting the two to allow material transfer. An Airstream sitting in air does not have that.
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Old 09-25-2013, 12:15 PM   #1666
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I have. The application works quite well although only time will tell if it is durable. Much easier than a spray can or a brush, and economical as well.
Thank you for your comment. I guess I will try it out too. No idea if it will do any good, because there is no "control" test with two trailers in identical situations, one with and one without the scratch pen clear coat repair system being used on it.

That is always a big issue with one off testing. You never know if the success (if you seem to have it) is because of what you did or if the problem would not have shown up on your unit had you done nothing at all.

One can report failure though.
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