Sealant chart - Dutchmen Owners

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Old 07-08-2019, 08:29 PM   #1
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Sealant chart

Hello All - I have a 2013 Dutchmen 202rbs and need to reseal almost every exterior area , especially the roof. It appears to jave 3 different kinds of sealant types that I can see. I donít lnow what material my roof is or what to use where. Any help is greatly appreciated 😀
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Old 07-08-2019, 08:35 PM   #2
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www.dicor.com

Welcome to the forum. Try NOT to use off the shelf silicone.
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Old 07-09-2019, 02:58 AM   #3
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Use ProFlex for the vertical seams and Dicor self-leveling sealant for the membrane roof.
The key is to remove all the old ProFlex sealant and then clean with Naptha (camp stove fuel) before applying the new sealant. Never add new sealant over old as you will not get a guaranteed watertight bond. You do not have to remove the Dicor on the roof but do clean it well prior to applying the new stuff. Generally you do not need to redo all the sealant on your roof as the Dicor stays put very well.
The vertical seams take a beating- recognize that while driving down the road at 100 KPH with a headwind in a rainstorm is akin to your RV being in a hurricane. Any cracks in the forward seals will get water driven right into the seams. Pay close attention to these seals by inspecting two or three times per season.

As stated- never use any hardware store silicone products anywhere on the exterior of your unit. Proflex and Dicor should be available at any good RV dealers parts department.
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Old 07-09-2019, 12:12 PM   #4
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As stated- never use any hardware store silicone products anywhere on the exterior of your unit.


What is your reasoning as to not using Silicone on the RV?
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Old 07-09-2019, 12:19 PM   #5
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What is the best sealant for RV?
Best RV Caulks
Dicor 501LSW-1 Self-Leveling Lap Sealant. ...
AP Products 017-90891 Sealant. ...
Geocel 28127V Pro Flex RV Flexible Sealant. ...
Alpha Systems 1021 Self-Leveling RV Sealant. ...
Gray Tremco Vulkem 116 Caulk. ...
Pro Flex Super Flexible Elastomeric Sealant. ...
Gorilla Silicone Sealant Caulk. ...
EternaBond RSW-2-50 RoofSeal Sealant Tape.

https://www.smartrving.net/best-rv-caulks/

Silicone has a tendency to turn yellow and peel off or you can't get it completely off, could go either way.

If I am putting something new on my RV, I use the butyl tape. One roll of that stuff will last you forever. One of the negatives I found is where to store the stuff as it needs to be stored flat with nothing on top. I also keep what's left of a roll of eternabond tape around plus a short roll of Flex Tape for those emergencies when you need to stop a leak or something.
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Old 07-09-2019, 01:37 PM   #6
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I attended a workshop on sealants when we brought our RV. We were told and shown the issues with silicone. Silicone does not bond well with metal or fibreglass and so never provides a great waterseal, especially under the circumstances I described above.
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Old 07-10-2019, 10:45 AM   #7
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I will climb on the no silicone wagon too

It will "micro" fracture and once it has been used NOTHING and I do mean nothing including new silicone will adhere to the area until it is completely removed. I redid a 1975 Airstream, took me over a month of evenings and weekends to get all the silicone caulk and residue off of it.

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Old 08-21-2019, 10:01 PM   #8
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Originally Posted by franktafl View Post
www.dicor.com

welcome to the forum. Try not to use off the shelf silicone.
never use off the shelf silicone!
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Old 08-21-2019, 10:15 PM   #9
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never use off the shelf silicone!
What about the stuff they keep behind the counter?
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Old 08-22-2019, 09:52 AM   #10
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What about the stuff they keep behind the counter?
Now you've gone an done it, you're confusing silicone with the silicone based lube... for...
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