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01-25-2022, 12:20 PM
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#1
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Senior Member
Join Date: Feb 2019
Location: Schertz
Posts: 1,021
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What's your "go-to" caulking/sealant?
I've seen OSI Quad Max, Proflex, etc. It's time for me to add some sealant to the trim of my rig. What's one you use and get the best results from?
__________________
2018 Ram 3500 CC Longhorn LB SRW w/timbrens
2019 Jayco Eagle 355MBQS
Pullrite 2600 Superlite
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01-25-2022, 12:57 PM
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#2
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Senior Member
Join Date: Aug 2018
Location: ridgecrest
Posts: 1,196
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I use Dicor Lap Sealant with good results.
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01-25-2022, 12:59 PM
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#3
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Senior Member
Join Date: Mar 2017
Location: Kingman, AZ
Posts: 1,990
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X 2...Dicor Lap Sealant
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Lee & Kathy, and our alarm clock Jake!
2017 Starcraft Autumn Ridge 266RKS 50 amp.
2017 Toyota Tundra Crewmax 4x4, 10-1-2021
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01-25-2022, 01:25 PM
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#4
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Senior Member
Join Date: Mar 2015
Location: Abingdon
Posts: 6,177
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ProFlex or SikaFlex. Dicor if I have to.
__________________
2013 Jayco Eagle 328 RLTS
2021 Keystone Montana 3121RL
2013 F350 6.7L 4x4 CCLB
W/Air Lift air bags (front & rear)
Equal-I-Zer™ WDH & B&W Companion
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01-25-2022, 01:41 PM
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#5
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,784
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For the roof, I have only used Eternabond.
For the walls, I have only used OSI Quad. Iit is very easy to purchase around here in the big box stores. If you have not used it, it is crazy sticky stuff. Cut a tiny tip to get started. Apply painters tape everywhere you do not want it. I uses super soapy water to smooth it out, and have a few clean up paper towels for your fingers. I found you can apply more over what you have smoothed out with your soapy water.
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01-25-2022, 02:01 PM
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#6
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Senior Member
Join Date: Apr 2016
Location: Portage
Posts: 481
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Roof: Dicor Self Leveling Lap Sealant
Sides: OSi Quad.
__________________
Tom
2016 Greyhawk 31DS
2016 Chevy Equinox LX
Blue Ox Baseplate w/Aventa LX Tow Bar & KarGard II Deflector
Blue Ox Patriot Brake
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01-25-2022, 02:10 PM
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#7
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Site Team
Join Date: May 2017
Location: Connellsville
Posts: 22,724
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OK, little side question for you all. I need to seal the metal Van roof to a plastic AC housing on the roof of my Sprinter van (not a traditional RV AC unit. This is a MB only deal). Any thoughts on the correct sealant to use in that application?
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Moderator
2017 Jay Feather 7 22BHM Baja/Andersen WD
2018 F150 4x4 3.5L Ecoboost Max Tow
2015 MB Sprinter 2500 Passenger 2.1L Diesel
2007 Ram 2500 4x4 Cummins 5.9L G56
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01-25-2022, 02:20 PM
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#8
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,121
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Quote:
Originally Posted by Midnightmoon
OK, little side question for you all. I need to seal the metal Van roof to a plastic AC housing on the roof of my Sprinter van (not a traditional RV AC unit. This is a MB only deal). Any thoughts on the correct sealant to use in that application?
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Pro Flex would be my first choice.
__________________
 DISNEY LOVERS
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01-25-2022, 02:59 PM
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#9
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Senior Member
Join Date: May 2016
Location: Milpitas
Posts: 1,628
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I use Quad for joints, but warn you, it is difficult to get out of the tube. Needs a lot of smoothing. For roof I use Dicor self-leveling. Eternabond with a Dicor edge for any penetrations.
__________________
2019 Chevy express 2500 Van Coversion. 2017 Jayco 23MRB: 26' total and Glacier Package. 2 Renogy solar panels. Married 49 years. Haley the mutt, 4 years old. "Excited to learn new things everyday and humbled by those who offer to help." And very grateful to our Moderators!
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01-25-2022, 03:02 PM
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#10
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Senior Member
Join Date: May 2016
Location: Milpitas
Posts: 1,628
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Midnightmoon: I would also use Proflex specifically because it is designed for expansion and contraction. If you want extra protection use Proflex for the fastening and Dicor self leveling for the edges.
__________________
2019 Chevy express 2500 Van Coversion. 2017 Jayco 23MRB: 26' total and Glacier Package. 2 Renogy solar panels. Married 49 years. Haley the mutt, 4 years old. "Excited to learn new things everyday and humbled by those who offer to help." And very grateful to our Moderators!
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01-25-2022, 03:06 PM
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#11
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Senior Member
Join Date: Nov 2016
Location: San Antonio
Posts: 2,952
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Quote:
Originally Posted by travelingjw
Midnightmoon: I would also use Proflex specifically because it is designed for expansion and contraction. If you want extra protection use Proflex for the fastening and Dicor self leveling for the edges.
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This would be my first choice.
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01-25-2022, 03:09 PM
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#12
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Senior Member
Join Date: Feb 2019
Location: Schertz
Posts: 1,021
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I've used OSI Quad Max before and yes it's very sticky. Just checking with you guys on what you recommend. Proflex and Dicor non-leveling seems reasonable and easy to work with
__________________
2018 Ram 3500 CC Longhorn LB SRW w/timbrens
2019 Jayco Eagle 355MBQS
Pullrite 2600 Superlite
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01-25-2022, 04:03 PM
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#13
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Site Team
Join Date: May 2017
Location: Connellsville
Posts: 22,724
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Quote:
Originally Posted by Grumpy
Pro Flex would be my first choice.
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Quote:
Originally Posted by travelingjw
Midnightmoon: I would also use Proflex specifically because it is designed for expansion and contraction. If you want extra protection use Proflex for the fastening and Dicor self leveling for the edges.
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Quote:
Originally Posted by TaftCoach
This would be my first choice.
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Thank you. I will get some ordered. It is something that I need to take care of as soon as the snow melts enough to work on it.
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Moderator
2017 Jay Feather 7 22BHM Baja/Andersen WD
2018 F150 4x4 3.5L Ecoboost Max Tow
2015 MB Sprinter 2500 Passenger 2.1L Diesel
2007 Ram 2500 4x4 Cummins 5.9L G56
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01-25-2022, 07:51 PM
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#14
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Senior Member
Join Date: Dec 2020
Location: Spring
Posts: 928
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Dicor Self Leveling Lap Sealant for the roof.
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2016 Starcraft AR One 18QB
2016 Colorado LT 3.6L V6 Ext. Cab
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01-26-2022, 12:23 AM
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#15
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Senior Member
Join Date: Dec 2017
Location: Nor Cal
Posts: 3,118
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Quote:
Originally Posted by Midnightmoon
OK, little side question for you all. I need to seal the metal Van roof to a plastic AC housing on the roof of my Sprinter van (not a traditional RV AC unit. This is a MB only deal). Any thoughts on the correct sealant to use in that application?
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I’ve used Proflex to seal the seams on the front of ours (aluminum siding) just as an extra precaution. It’s fairly easy to work with and adheres to the metal well.
__________________
2018 JayFlight SLX 212QBW
1999 Ford F-250 Super Duty Lariat SC, 7.3L PSD, 3.73
Transfer Flow 50 gal aux; Andersen WDH; Prodigy P2
😁 "If a man says he’ll fix something, he will. There’s no need to remind him every 6 months.
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01-26-2022, 07:33 AM
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#16
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Site Team
Join Date: May 2017
Location: Connellsville
Posts: 22,724
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Quote:
Originally Posted by LuckyDuck
I’ve used Proflex to seal the seams on the front of ours (aluminum siding) just as an extra precaution. It’s fairly easy to work with and adheres to the metal well.
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Thanks. Yes, I think that is the way I am going to go. The "warranty fix" made it worse than it was before. Time for me to do it right and be done with it.
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02-02-2022, 02:02 PM
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#17
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Senior Member
Join Date: Jul 2019
Location: Suffolk
Posts: 102
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sealant
Have use Dicor, and Proflex. Please don't use any Silicone!
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02-02-2022, 02:19 PM
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#18
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Senior Member
Join Date: Sep 2016
Location: West Michigan
Posts: 697
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Quote:
Originally Posted by tom463219
Roof: Dicor Self Leveling Lap Sealant
Sides: OSi Quad.
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Yup!
I always carry those plus Eternabond. OSI Quad is a little tricky, but once you figure how it behaves, a dab of spit on a fingertip smooths it just fine.
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02-02-2022, 02:26 PM
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#19
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Senior Member
Join Date: Mar 2015
Location: Abingdon
Posts: 6,177
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Quote:
Originally Posted by Midnightmoon
Thank you. I will get some ordered. It is something that I need to take care of as soon as the snow melts enough to work on it.
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SikaFlex is very good also. Highly used in the construction industry.
__________________
2013 Jayco Eagle 328 RLTS
2021 Keystone Montana 3121RL
2013 F350 6.7L 4x4 CCLB
W/Air Lift air bags (front & rear)
Equal-I-Zer™ WDH & B&W Companion
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02-02-2022, 03:05 PM
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#20
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Site Team
Join Date: May 2017
Location: Connellsville
Posts: 22,724
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Quote:
Originally Posted by TWP723
SikaFlex is very good also. Highly used in the construction industry.
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Thanks. 
__________________
Moderator
2017 Jay Feather 7 22BHM Baja/Andersen WD
2018 F150 4x4 3.5L Ecoboost Max Tow
2015 MB Sprinter 2500 Passenger 2.1L Diesel
2007 Ram 2500 4x4 Cummins 5.9L G56
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