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Old 11-08-2019, 08:21 AM   #1
Windsormike6
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Underbelly wrap repair

Had a tire blowout while evacuating from the fires in Northern California ,and it tore the under wrap on my trailer does anybody know how to repair it
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Old 11-08-2019, 10:26 AM   #2
sourdough
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Are you referring to the coroplast (looks like plastic cardboard) or the darco fabric above the tires (looks like a very thin, waffly sheet of plastic material)? The repairs are different. Also, do you need to repair or replace?
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Old 11-08-2019, 11:50 AM   #3
Windsormike6
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Are you referring to the coroplast (looks like plastic cardboard) or the darco fabric above the tires (looks like a very thin, waffly sheet of plastic material)? The repairs are different. Also, do you need to repair or replace?



Itís Darco fabric. Maybe both replace or or repair
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Old 11-08-2019, 11:52 AM   #4
Windsormike6
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It’s darco fabric 2002 sprinter can replace or repair it
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Old 11-08-2019, 02:44 PM   #5
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You say you can replace OR repair. I'd suggest replace. The repair tape is a bit thinner and if a portion of the wheelwell is damaged, the remaining part of the DARCO is very likely to be damaged and/or punctured by small rocks/stones that have been slung into it through the years.

You can buy replacement DARCO at any RV parts center, mobile home supply store (it's the same fabric that's used to cover the bottom of manufactured homes). The tape that's used to repair it is called SCRIM tape and is available in 2,4,6 inch and wider rolls. Keep in mind that it is a "film" and has a paper backing that needs to be removed to apply the tape. I find that anything wider than 6" is extremely difficult to apply properly because of the problems handling the tape while trying to remove the paper backing. I prefer the 4" SCRIM tape for most applications.

If I were you, I'd inspect the undamaged wheelwell carefully. Chances are there is water intrusion (through those small pinholes) and likely water damage to the underside of the wood used to form the wheelwell. I recently installed 1/4" HPDE sheeting to line my wheelwells. Although quite a bit heavier than the DARCO, it is structurally much stronger and I believe it will protect against those "pinholes" much better than the DARCO. I did leave the DARCO in place (and suggest you replace yours) as a second line of defense against water intrusion, under the HDPE sheeting.

There are some photos and a discussion of what I did in the thread located here: http://www.keystoneforums.com/forums...ad.php?t=39472
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Old 11-08-2019, 03:51 PM   #6
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When the tire blew on this trailer it got the darco as well. It also cut through it and the flooring above it. Between new flooring material (underneath), spray expanding foam and new darco (along with coroplast) they fixed it. It fixed it but I am going to implement John's fix as soon as I get back to TX in the spring. I drove 3 days in almost non stop rain getting here and I have very little faith in the darco (or the repairs) for that kind of intense exposure to water - I want my floor to stay intact!!

I can also attest that the scrim type tape is difficult to deal with. Along with being very "persnickety" in how you handle it, I usually can't even get the paper backing to start to come off!! I use 4" as well. You can also buy 4'x4' (if I recall) sections of darco floor repair material from Amazon for areas that it would work on.
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Old 11-08-2019, 05:30 PM   #7
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Thank you for your reply how hard is it to replace
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Old 11-08-2019, 05:35 PM   #8
sourdough
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Darco or the scrim tape? Much different.
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Old 11-08-2019, 09:06 PM   #9
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The Darco do I have get it under the frame or anything like that
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Old 11-09-2019, 07:27 AM   #10
sourdough
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The Darco do I have get it under the frame or anything like that
The original covering of Darco goes completely around the flooring before it is placed onto the frame as I understand it. The repairs I have seen do not lift the floor to put the Darco above the frame. You can put it on with a spray adhesive.
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Old 11-09-2019, 08:06 AM   #11
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That’s what I was thinking I would think it would be impossible to lift up the flooring so I’m thinking spray foam on the wood then the Darco thank yo for replying very much appreciated
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