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04-17-2020, 01:12 PM
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#1
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Senior Member
Join Date: Jul 2011
Location: Fairhaven, MA
Posts: 354
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Sealant question
Hello,
I am familiar with what sealant to use on the roof, sides of camper, butyl putty, etc.
But, I am u aware of what kind of sealant this is on the underside. I looks very thick os I assume it doesn’t drip while setting up. It’s black in color. I want to get some to seal a couple of holes I had to drill.
Thanks for any help!
__________________
Greg
2022 Cougar 25RDS
2024 GMC Sierra 2500HD gas
Fairhaven, MA
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04-17-2020, 01:59 PM
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#2
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Senior Member
Join Date: Oct 2018
Location: Southern California
Posts: 1,286
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I’m not sure what that stuff is but I used Proflex in the same area on my camper.
__________________
Mike
2017 F250 6.7 Powerstroke FX4 crew cab
2016 Hideout 24BHSWE (27 foot TT)
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04-17-2020, 03:46 PM
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#3
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Senior Member
Join Date: Jul 2011
Location: Fairhaven, MA
Posts: 354
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Quote:
Originally Posted by Logan X
I’m not sure what that stuff is but I used Proflex in the same area on my camper.
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Thank you.
__________________
Greg
2022 Cougar 25RDS
2024 GMC Sierra 2500HD gas
Fairhaven, MA
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04-17-2020, 05:25 PM
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#4
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,319
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I have often wondered myself. If you cut it, it’s like silicone. I bet the factories buy it in 55gal drums and use pneumatic guns to apply it.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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04-17-2020, 05:36 PM
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#5
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,979
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All (or at least most) of the sealant on the bottom of the trailer is applied while the chassis is "wheels up" just after the coroplast is installed. Once the "bottom work" is finished, the trailer is turned over on its wheels, the tanks are installed, plumbing/electrical runs are done, heating ducts are laid in the spaces and the floor (usually wrapped in DARCO) is laid on top of the chassis and secured in a few places (so it won't move). Later, as the interior and exterior walls are installed, the remainder of the floor is secured to the outriggers, cross braces and frame rails.
Like Chuck mentioned, it looks like/cuts like a "clear, shiny silicone like" caulk.
As for what to use to reseal the area, nearly anything that bridges the existing putty area will have "clear margins to adhere" without any silicone issues.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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04-17-2020, 06:04 PM
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#6
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Senior Member
Join Date: Jul 2011
Location: Fairhaven, MA
Posts: 354
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Thanks for that info. It makes sense.
I added the second tube with wiring for an outlet in the slide. I wanted to seal it like the factory one.
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04-17-2020, 06:22 PM
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#7
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Senior Member
Join Date: Oct 2018
Location: Southern California
Posts: 1,286
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Quote:
Originally Posted by Logan X
I’m not sure what that stuff is but I used Proflex in the same area on my camper.
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Here is a link if you want to get some-
https://www.amazon.com/Geocel-GC2810.../dp/B001FC98X2
__________________
Mike
2017 F250 6.7 Powerstroke FX4 crew cab
2016 Hideout 24BHSWE (27 foot TT)
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04-17-2020, 06:50 PM
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#8
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Senior Member
Join Date: Jul 2011
Location: Fairhaven, MA
Posts: 354
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Thank you, I actually use that already for sealing. It’s good stuff!
__________________
Greg
2022 Cougar 25RDS
2024 GMC Sierra 2500HD gas
Fairhaven, MA
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04-17-2020, 07:28 PM
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#9
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Senior Member
Join Date: Oct 2018
Location: Southern California
Posts: 1,286
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Quote:
Originally Posted by gregrc75
Thank you, I actually use that already for sealing. It’s good stuff!
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Ahh. I should have guessed you already use it. Agreed, it’s good stuff.
__________________
Mike
2017 F250 6.7 Powerstroke FX4 crew cab
2016 Hideout 24BHSWE (27 foot TT)
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04-18-2020, 06:36 PM
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#10
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Junior Member
Join Date: Feb 2016
Location: Rapid City, SD
Posts: 9
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In the past I have used the Great Stuff expanding foam. They make one that is black and can be located at hardware stores or big box stores. May take a little hunting but it is in the same area. I have used it and finished product looks like the stuff from the factory.
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04-19-2020, 03:48 AM
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#11
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Senior Member
Join Date: Jul 2011
Location: Fairhaven, MA
Posts: 354
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Quote:
Originally Posted by HandymanK
In the past I have used the Great Stuff expanding foam. They make one that is black and can be located at hardware stores or big box stores. May take a little hunting but it is in the same area. I have used it and finished product looks like the stuff from the factory.
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Thanks! I was thinking of using pond foam. It’s black and made to direct water. Pond foam as in a backyard fish pond/waterfall.
__________________
Greg
2022 Cougar 25RDS
2024 GMC Sierra 2500HD gas
Fairhaven, MA
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