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09-20-2021, 01:01 PM
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#1
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Experienced Learner
2000 34' Excella
Somewhere
, Earth
Join Date: Jun 2018
Posts: 58
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Filioform Corrosion?
Looking for clarity on what is shown in the pictures below.
Many of the previous posts related to filiform corrosion are related to spider web like corrosion around rivets and along edges, or on attached parts like tail light frames. This is not that, it's mostly in the middle of panels. Is this filiform corrosion, or something else?
The trailer has been stored, and while washing (getting ready to sell) these little squiggles became evident. I haven't looked closely at the finish in a while, but do not think they were there 6 months ago, at least not this many.
Still reading posts where people treated this and similar issues, to get an idea of how to handle...and how to explain to prospective buyers. If anyone has any feedback or suggestions, please feel free to share.
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09-20-2021, 01:44 PM
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#2
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Rivet Master
2009 34' Panamerica
2005 28' Classic
Still
, in the thick of it
Join Date: Jan 2018
Posts: 677
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If this is the 2000 in your sig, then it's got the Aloca coating on it.
The only way to get it close to normal is to have the trailer stripped and re-coated with clear. From the pics there are just too many to clean up and in the end would prob look worse.
Stripping and recoating a 34 footer isn't gonna be cheap though.
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09-20-2021, 09:48 PM
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#3
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Experienced Learner
2000 34' Excella
Somewhere
, Earth
Join Date: Jun 2018
Posts: 58
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Quote:
Originally Posted by panamerican
The only way to get it close to normal is to have the trailer stripped and re-coated with clear. From the pics there are just too many to clean up and in the end would prob look worse.
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Yeah, after several hours reading various threads on the subject, that is the conclusion I have come to. It's good to know there is a way to handle it, but you are probably right about it being a bit costly. It does seem like a lot of work.
Have sent an inquiry to an Airstream restoration/customization shop requesting more info. Will update this post to help others having the same issue.
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09-21-2021, 06:21 AM
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#4
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Rivet Master
Join Date: Sep 2004
Posts: 1,803
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aswell,
If you can find somebody to strip/polish/clearcoat there are many that would be interested in that company. I too, have a 1996 34' and would be willing to pay the price for a strip/polish/clear job, but have been unable to find someone. The best I've found is the product "Alumiclear" that could be used for the clearcoat, but sadly P&S in Ohio will not strip/polish with something other than "Blue Magic" polish which has silicone (which can't be used).
Good Luck,
__________________
Paul Waddell
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09-21-2021, 06:36 AM
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#5
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Rivet Master
2009 34' Panamerica
2005 28' Classic
Still
, in the thick of it
Join Date: Jan 2018
Posts: 677
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https://pandstrailerservice.com/
These are the folks that have been doing this type of work for several decades and come highly recommended.
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09-21-2021, 06:49 AM
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#6
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,000
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Does 'Somewhere Earth' have a lot of unpaved roads?
It appears to be small stone chips that compromised the Alcoa clear and filiform took over.
You can remove with a dental scaler and cover with a auto clear coat or let the next owner take care of it.
IMHO...Re-coating would cost more than the depreciation it causes when sold.
Bob
🇺🇸
__________________
I’m done with ‘adulting’…Let’s go find Bigfoot.
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09-21-2021, 08:13 AM
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#7
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Rivet Master
2009 34' Panamerica
2005 28' Classic
Still
, in the thick of it
Join Date: Jan 2018
Posts: 677
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Quote:
Originally Posted by ROBERT CROSS
Does 'Somewhere Earth' have a lot of unpaved roads?
It appears to be small stone chips that compromised the Alcoa clear and filiform took over.
You can remove with a dental scaler and cover with a auto clear coat or let the next owner take care of it.
IMHO...Re-coating would cost more than the depreciation it causes when sold.
Bob
🇺🇸
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I don't disagree at all Bob, but if I am looking at the pics correctly, there are at least 20 per picture and each picture is a different panel, and if so, we'd be talking at between 50-60 different marks. Sure it'd stop it, but not sure how much better it'd look.
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09-21-2021, 10:47 AM
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#8
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Experienced Learner
2000 34' Excella
Somewhere
, Earth
Join Date: Jun 2018
Posts: 58
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Quote:
Originally Posted by ROBERT CROSS
Does 'Somewhere Earth' have a lot of unpaved roads?
It appears to be small stone chips that compromised the Alcoa clear and filiform took over.
You can remove with a dental scaler and cover with a auto clear coat or let the next owner take care of it.
IMHO...Re-coating would cost more than the depreciation it causes when sold.
Bob
🇺🇸
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There are a lot of unpaved roads in the places we like to travel, but we rarely if ever take them when towing the trailer. I don't know how the clear coat was penetrated, but it's likely not only due to rocks or sand based on the location.
We have been in Montana early spring, so perhaps there were some of the chemicals used for de-icing still on the road, and they became reactivated with rain. We have also spent some time in the desert. Not sure...
What I can say is that it only recently began to become evident, and it's mainly on one side, the side not currently in the sun. It has been parked in South Texas, where it can be fairly humid at times. My theory is that the clear coat penetration has been there a while, and it took sitting for an extended period in a humid environment with no sun exposure for the issue to develop.
The trailer is being sold, and I simply want to point potential buyers to a solution for the issue. As long as people know it's something that can be addressed, and that it can happen with any Airstream, it won't be so intimidating.
We have other issues with the trailer (dents and dings), and it is already priced very aggressively, so I don't think this will discourage people who would be interested in this trailer. Giving it a good stripping and polishing, once a few dings are worked out, would make it look very nice.
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09-21-2021, 12:21 PM
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#9
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2 Rivet Member
2011 27 FB International
Spokane
, Washington
Join Date: Feb 2019
Posts: 96
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Quote:
Originally Posted by panamerican
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Are you saying they would completely strip the trailer, polish it like a vintage trailer, and then coat it? I ask b/c I have filiform on my rig and all of my digging on the forum has provided one conclusion: stop the filiform, prevent additional filiform, and live with the blemishes. There's no way to restore the brushed aluminum look from what I understand.
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09-21-2021, 12:47 PM
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#10
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Rivet Master
2009 34' Panamerica
2005 28' Classic
Still
, in the thick of it
Join Date: Jan 2018
Posts: 677
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Quote:
Originally Posted by coltnkat
Are you saying they would completely strip the trailer, polish it like a vintage trailer, and then coat it? I ask b/c I have filiform on my rig and all of my digging on the forum has provided one conclusion: stop the filiform, prevent additional filiform, and live with the blemishes. There's no way to restore the brushed aluminum look from what I understand.
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If there are a few blemishes, the etch and clearcoat or clear nail polish the spots are worth it to stop the spread, BUT if you have it on your coach as the OPs, it won't look good. You'll be trading fillform for spots and a lot of them in the OPs case. If you want it done where it doesn't look like it came out of the Sanford and Son yard with a trailer that has it like a rash, then stripping and applying clearcoat either to the effected panels (depending if it matches the other non treated panels) or the whole trailer is really the only realistic option.
You are correct, no way to restore the brushed alum look using the hunt and peck method to stop the spread. Doing nothing however, once the can of worms has veered it ugly head, will only get worse over time. Since the OP said it took 6 months, my guess is under the right environment, it will get worse quick.
The alum in a 2000s trailer is different than vintage, it will never shine like a mirror like the vintage units. Best you can hope for is close to the shine it had from the factory in the 2000s, maybe slightly better, but not by much.
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09-21-2021, 01:01 PM
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#11
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,000
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Quote:
Originally Posted by aswell
There are a lot of unpaved roads in the places we like to travel, but we rarely if ever take them when towing the trailer. I don't know how the clear coat was penetrated, but it's likely not only due to rocks or sand based on the location.
We have been in Montana early spring, so perhaps there were some of the chemicals used for de-icing still on the road, and they became reactivated with rain. We have also spent some time in the desert. Not sure...
What I can say is that it only recently began to become evident, and it's mainly on one side, the side not currently in the sun. It has been parked in South Texas, where it can be fairly humid at times. My theory is that the clear coat penetration has been there a while, and it took sitting for an extended period in a humid environment with no sun exposure for the issue to develop.
The trailer is being sold, and I simply want to point potential buyers to a solution for the issue. As long as people know it's something that can be addressed, and that it can happen with any Airstream, it won't be so intimidating.
We have other issues with the trailer (dents and dings), and it is already priced very aggressively, so I don't think this will discourage people who would be interested in this trailer. Giving it a good stripping and polishing, once a few dings are worked out, would make it look very nice.
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Believe me I speak from experience.
Treating it won't make it look any better it's not meant to.
Stopping the spread, that's the important thing.
Bob
🇺🇸
Untreated it will end like this...
__________________
I’m done with ‘adulting’…Let’s go find Bigfoot.
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09-21-2021, 05:07 PM
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#12
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Experienced Learner
2000 34' Excella
Somewhere
, Earth
Join Date: Jun 2018
Posts: 58
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Quote:
Originally Posted by ROBERT CROSS
Believe me I speak from experience.
Treating it won't make it look any better it's not meant to.
Stopping the spread, that's the important thing.
Bob
🇺🇸
Untreated it will end like this...
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Yeah, I have seen similar pictures in other posts. Thankfully in this case it's mostly the little squiggles in the middle of panels, as opposed to being at the edge of panels or hinges or frames.
It seems the best approach is to strip the clear coat, since it's already compromised, and polish. Then, decide whether simply leave polished and wax, or reapply some sort of clear coat.
Personally it seems leaving it polished and simply waxing makes more sense, to avoid this or similar situation in the future...
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09-21-2021, 06:25 PM
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#13
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,000
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Quote:
Originally Posted by aswell
Yeah, I have seen similar pictures in other posts. Thankfully in this case it's mostly the little squiggles in the middle of panels, as opposed to being at the edge of panels or hinges or frames.
It seems the best approach is to strip the clear coat, since it's already compromised, and polish. Then, decide whether simply leave polished and wax, or reapply some sort of clear coat.
Personally it seems leaving it polished and simply waxing makes more sense, to avoid this or similar situation in the future...
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Are you not selling it? Have you priced a strip & polish?
I doubt if you will make up the 4-5k it may cost for the strip & polish.
Good Luck
Bob
🇺🇸
__________________
I’m done with ‘adulting’…Let’s go find Bigfoot.
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09-21-2021, 10:38 PM
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#14
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Experienced Learner
2000 34' Excella
Somewhere
, Earth
Join Date: Jun 2018
Posts: 58
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Quote:
Originally Posted by ROBERT CROSS
Are you not selling it? Have you priced a strip & polish?
I doubt if you will make up the 4-5k it may cost for the strip & polish.
Good Luck
Bob
🇺🇸
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Sorry, I wasn't clear.
Yes, it is being sold, and potential buyers will be informed that the solution to the issue is to have it stripped and polished. It is already priced very low, so it will be up to the buyer to handle, if they choose to do so.
Thanks for your input both here and in the numerous other threads on the topic, most helpful...
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