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Old 05-19-2020, 10:42 AM   #1
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Urethane sealant (Manus bond) application

Need to reseal the roof to sidewall joint on out 2001 Adventurer. The picture is what I am dealing with. From right to left, fiberglass roof, very thin existing bead of caulk, gap (which I think should be filled), metal track that holds the awning, finally the awning itself.
Pretty certain nothing has ever been redone here, but sure seems like the original bead s/b bigger.
Sealant call out sheet calls for p/n 072889-10-000. The ď10Ē is a different number for different years which is guess is a color code.
Any thoughts or input will be appreciated. Maybe even a picture of how it should look.
Thanks, Phil
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Old 05-19-2020, 11:01 AM   #2
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It doesn't look like your roof radius is painted, correct? The material to use differes (I beleive) when it is and isn't. I used the Manus bond on my painted radius/joint. I'm not sure I know what to use otherwise.
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Old 05-19-2020, 11:03 AM   #3
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I found this old thread...


https://www.winnieowners.com/forums/...nt-103789.html
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Old 05-19-2020, 11:22 AM   #4
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Thanks, ThomB for the reply, a lot of good info. Iím using my phone now and will get on the computer where I can study it better.
The Winnebago part number I used (072889-10-000) is referred to as Manus bond or Manus urethane on the Lichtsinn RV website. A pretty slick deal, get on the website, put in a part number and a little other info and get a price quote quickly.
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Old 05-19-2020, 11:34 AM   #5
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BTW, in the picture I sent, as ThomB pointed out, the roof is not painted. Jus a coating of dirt over the original white gel coat.
Phil
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Old 05-19-2020, 12:07 PM   #6
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There's a tech on YouTube (AZEXPERT) that does a lot of videos on Winnebago roof resealing and he recommends, ProFlex Clear Urithane rather than Manus Bond.

I used Manus bond on my roof radius and it was kind of difficult to work with. It's not self-leveling and VERY sticky.

Here's a Video on the process:

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Old 05-19-2020, 10:58 PM   #7
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Great video. Thatís how I re-caulked the rook line in my Sunstar in year three of owning it. Getting the caulking under the fiberglass was really important. Using the tape made the look good.
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Old 05-20-2020, 07:25 PM   #8
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I used Manus Bond 75 on my fiberglass roof seam. I did not find it difficult to deal with. The hard part was cleaning out the old material and make sure it was dry before i applied it. On a 36 foot DP I used about 3 tubes. Its held up well over the last 3 years.
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Old Yesterday, 10:12 PM   #9
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You do have to clean along with dry down inside the joint and the Manus Bond should not create a large bead since it goes inside the joint between the fiberglass and the aluminum channel, not just on top of the edge of the aluminum channel and fiberglass or else you will not get a good bond.

Note that Manus Bond has a relatively short shelf life of 9 months from date of manufacture so refuse anything that is even close to 9 months old. For the best results you only want Manus Bond that is within a few months from the date of manufacture which is stamped on the tubes.

The last time I bought any from LazyDays in Sefner Florida every tube they had in stock was well past 1 year old so basically out of warranty from Manus and unusable for a Winnebago Roof Seam.
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