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Old 10-16-2017, 11:38 AM   #1
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Newmar Owners Club
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Fiberglass roof chalking

My coach is a 2014 and already the gel-coat on the fiberglass roof is chalking and running down onto the body leaving quite a white streaky mess. Any suggestions short of all the work required to reseal the roof?

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Old 10-16-2017, 06:19 PM   #2
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I do not have a fiberglass roof anymore but when I did I waxed it with Zep high traffic floor wax. Mine was an 05 and oxidized so I scrubbed it and applied 5 thin coats the first time. After that I did one or 2 coats every year and did not have the issue anymore. You can buy it at Home Depot by the gallon for about $17. Will last for many many coats. You'll find lots of other ways to accomplish this on this forum as well. Happy trails.

2012 Nu Wa 363RSBDA
2016 Ford F-350 Dually 6.7
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Old 10-16-2017, 10:02 PM   #3
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Coat of wax will fix it. I have a 2015 and put a couple of coats on a year. No more streaks
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Old 10-16-2017, 10:18 PM   #4
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Fiberglass boat sealer works well too. You do have to wash and wax the fiberglass on the roof just like the sidewalls (actually its even more critical due to constant direct exposure to the sun) or you will get streaking.
Neil V
2001 Winnebago Adventurer WFG35U
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Old 10-17-2017, 06:12 AM   #5
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I washed then applied Mop & Glow to ours last summer, 2016. I can see the roof from a 2nd story bedroom. Still has a shine to it, could use a washing though.

I also cleaned the entire coach in the spring and waxed all but one smaller section. On that section I applied Mop & Glow. It's the only section that doesn't look like it needs to be done again. Like ZEP floor polish, just wipe it on, several coats, to get an even shine. No buffing and it does clean in case you missed any spots when you washed it. Oh, and it's really cheap.
Hank & Lynda
2003 Winnebago Adventurer 35U, Workhorse W22
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fiberglass, roof

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