Assembly Mastic / Caulking Between Panels
Hotshot
Joined: Oct 2004
Posts: 15,882
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From: Durham NC
You can buy the caulk in packages of strips in the insulation dept at the DIY stores, rec vehicle parts stores or at auto parts stores. It has a putty like consistency that never hardens and is only slightly adhesive so it can be taken apart and cleaned off clean.
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Laughing Gas
Joined: Feb 2006
Posts: 892
Likes: 85
From: Western Massachusetts
That sounds like the original mastic. When I first looked at that clean up job I thought this stuff is going to come off hard. I was pleasantly surprised. After 58 years it scraped off cleanly once it sat in the sun for a half hour.
Fleet Owner
Joined: Jul 2004
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From: NM
I think it was on the HAMB, in a Tech thread, that a guy used a bead of polyurethane sealant on the tunnel cover, put saran wrap over it, then pressed the cover into place. He let it cure, then removed the saran wrap. Instant permanent (more or less) re-useable gasket. (I can't remember if it was saran wrap or waxed paper)
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Logistics Pro
Joined: Apr 2010
Posts: 3,577
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From: Pekin, IL
You are joking right? My experience with that, sticks to everything then oozes through everything, good for tracking everywhere, won't come off clothes, hands, or mosquito's on a bald head!
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The "stuff" I'm referring to comes in rolls ,usually 3/8" wide. It does not run or ooze out. It is used between the laps on metal roofing, It does not harden and is relatively easy to get off if its warmed up a little. It was designed to go between layers of metal to form a waterproof seal. The bead of polyurethane sealer you referred to earlier is probably the same thing
Tuned
Joined: Sep 2010
Posts: 374
Likes: 3
Hi all,
This is what I have been using. It seems very close to original material but it is a Canadian product so don't know if it would be available in the U.S. Got it at the local Home Hardware store, very inexpensive.
I have also seen similar material used in semi trailer vans that came in fairly large rolls about 1/4 '' wide. Could possibly be available from a place that repairs these trailers.
This is what I have been using. It seems very close to original material but it is a Canadian product so don't know if it would be available in the U.S. Got it at the local Home Hardware store, very inexpensive.
I have also seen similar material used in semi trailer vans that came in fairly large rolls about 1/4 '' wide. Could possibly be available from a place that repairs these trailers.
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