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Old 08-25-2014, 04:16 PM   #1
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2010 23' International
Saturna , British Columbia
Join Date: Apr 2010
Posts: 183
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creeping corrosion on a 2010 AS?

Hi Everyone,

I have just noticed a half dozen of small tendril like lines and patches of what appears to be corrosion creeping out from under exterior lights and fittings.

"Whats this?!" I say....

Is my AS "rusting"?

Is there a cure or method to stop this? Is it normal?


"All that is mine, I carry with me." Cicero
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Old 08-25-2014, 05:24 PM   #2
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2013 25' FB Flying Cloud
2011 23' FB Flying Cloud
Branson , Missouri
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What you're seeing is Filaform.

More than you ever wanted to know can be found here.

2013 25 FC FB (Twin)
2013 Suburban 2500

2011 23 FC FB
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Old 08-25-2014, 05:46 PM   #3
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2005 30' Classic
Burlington , Ontario
Join Date: Sep 2008
Posts: 2,266
Filiform corrosion - you'll find plenty with a search ..... and be sorry you asked!

(But you have lots of company!)

Brian & Connie Mitchell

2005 Classic 30'
Hensley Arrow / Centramatics
2008 GMC Sierra SLT 2500HD,4x4,Crew Cab, Diesel, Leer cap.
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Old 11-03-2014, 05:19 AM   #4
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Are the older units less susceptible to the corrosion issue?

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Old 11-03-2014, 05:50 AM   #5
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North central , Florida
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Pretty much normal, not a structural problem, only cosmetic.
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