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Old 03-26-2015, 01:32 PM   #1
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any reason not to use closed cell foam between skins or under floor?

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Old 03-26-2015, 01:49 PM   #2
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Breakdown and powdering from vibration,offgassing and age would be my best guess. Ed

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Old 03-26-2015, 02:49 PM   #3
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What is the best non-toxic insulation ?
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Old 03-26-2015, 03:56 PM   #4
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Prodex, is used quite often. Johnsmanville has a fiberglass type without the use of Formaldehyde. There are quite a few threads on the subject. Like:
The search feature here kinda sucks, I sggest you go to google and search, for example "airstream insulation", or "what ever" and look for the posts from

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Old 03-26-2015, 05:00 PM   #5
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I'd recommend mineral wool over fibreglass as it is hydrophobic and won't retain water like fibreglass. Look to brands such as Roxul, which is readily available.
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Old 03-26-2015, 07:02 PM   #6
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Avions used blown foam insulation and still holding up 20 plus years since last rigs were made. Also provides for stiffer walls and roof. Not sure if open or closed cell.

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