Need new coroplast for the entire camper underbelly - Dutchmen Owners

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Old 06-19-2017, 09:25 PM   #1
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Need new coroplast for the entire camper underbelly

I lost the entire coroplast liner that enclosed my camper's underbelly this weekend. I think the root cause was from some axle work I had done two years previous. I noticed then that they didn't fully reattach the coroplast to the frame very well at the axles. I had always meant to button it up better but never got around to it....

While driving to the destination this weekend I was passed by a car that rolled their window down and gave me the signal that something was up. I pulled over and found about the third of the coroplast liner still attached to the very rear of the camper and dragging on the ground. The entirety of the rest of it was completely gone! Luckily it didn't tear any wiring out or propane lines. It did tear the handle off of my gray water dump valve. I had to screw a long wood screw in as a hack to get the tank dumped.

So has anyone else replaced the entire liner before? Dealer or DIY project? Cost? Thanks.
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Old 06-20-2017, 04:12 PM   #2
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Can't offer to much help in this area, but Home Depot does sell sheets of it. Might be able to make contact with the manufacturer to see if they offer other sizes or a roll...best of luck.
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Old 06-20-2017, 04:23 PM   #3
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Thanks. I am finding via internet that you can get it in 4'x8' sheets from hardware stores. Also recommendations to reach out to sign shops for potentially better prices
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Old 06-22-2017, 06:53 PM   #4
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ewarnerusa, before you place it back together, nows the time to take pictures of everything, so you know where something is, before opening the whole thing again, if it comes to that...
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Old 06-23-2017, 10:54 AM   #5
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Installing the cloroplast

I posted this in another thread - seems appropriate here too. It is the tape for use on that material:

Search eBay for Flex-Mend (FM-4108T) RV Belly Tape - this is product made for the chloroplast belly we have on these rigs. Works fantastic!
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Old 07-25-2017, 07:05 PM   #6
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OP Update.
Nothing has been fixed yet, but I have ventured into Home Depot to find 4'x8' sheets of coroplast for ~$22 ea. I had not bothered calling my RV dealer just assuming that this would be a big $$$ item from them. Turns out, based on a phone call anyway, that they have it in a 70" roll that they sell by the foot for $7/ft. This is very reasonable and likely the route I'll go.
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Old 07-25-2017, 11:39 PM   #7
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Quote:
Originally Posted by ewarnerusa View Post
OP Update.
Nothing has been fixed yet, but I have ventured into Home Depot to find 4'x8' sheets of coroplast for ~$22 ea. I had not bothered calling my RV dealer just assuming that this would be a big $$$ item from them. Turns out, based on a phone call anyway, that they have it in a 70" roll that they sell by the foot for $7/ft. This is very reasonable and likely the route I'll go.
Check the math. 4x8 is 32 sq ft, so a sheet that cost cost $22 is .69, or 69 cents per sq ft. The roll, each ft of length is 5.8 sq ft, so each sq ft cost $1.21 Perhaps more pertinent, your main underbody is probably 8 ft wide. 70" doesn't help much. I'd use a sheet of 4x8, placed left to right, for each 4 ft of trailer length.
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Old 07-26-2017, 01:52 AM   #8
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Marty knows his math!

Good catch.
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Old 07-26-2017, 12:11 PM   #9
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I realize it's more, but only slightly and surprisingly not a lot more since it is from a dealer. Plus I'd rather have a single continuous sheet like it was originally. Multiple pieces makes me worried it would catch air again and pull off again. When I measured previously the frame width was roughly 6'. So I'll have to remeasure to see if it was really 70". I suspect so, probably a standard width.
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Old 07-26-2017, 05:48 PM   #10
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But to put it another way, my rough measurement of the size of the old coroplast is 6'x24'. I'd need 6 sheets of 4x8 to cover that, so 6*$22 = $132.
Assuming 70" width works for me, that's 24*$7 = $168.

So that's $36 more to get a single clean seamless sheet vs cobbling 4x8 sheets together. Seems worth it to me.
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