Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 05-14-2020, 02:23 PM   #1
Senior Member
 
Brand: Thor Motor Coach
Model: 2019 Freedom Elite 30FE
State: New York
Posts: 178
THOR #16600
So, about caulk

I have poked around and found as many opinions about which caulk to use as there are caulks available. My message to Thor has gone unanswered.

I have a few areas on the outside of the rig that I need to re-caulk. These are seams of moldings and trim, non roof stuff.

What caulk to you guys recommend?

__________________
raffaelli is offline   Reply With Quote
Old 05-14-2020, 02:36 PM   #2
Senior Member
 
Travelin' Texans's Avatar
 
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,656
THOR #3610
DO NOT use any silicone caulk you can buy at your local hardware store anywhere on your RV.
The best if I recall is ProSeal or ProFlex by Geocel for the seams with Dicor for the roof.
__________________
Danny & Linda
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Currently RV & truckless
Replacement undetermined
Travelin' Texans is offline   Reply With Quote
Old 05-14-2020, 02:46 PM   #3
Senior Member
 
Brand: Thor Motor Coach
Model: 2019 Freedom Elite 30FE
State: New York
Posts: 178
THOR #16600
Quote:
Originally Posted by Travelin' Texans View Post
DO NOT use any silicone caulk you can buy at your local hardware store anywhere on your RV.
The best if I recall is ProSeal or ProFlex by Geocel for the seams with Dicor for the roof.
I called DAP to ask what they recommend. They said silicone adhesive.

Thanks, Proflex seems to be the most common recommendation.
__________________
raffaelli is offline   Reply With Quote
Old 05-14-2020, 03:18 PM   #4
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,094
THOR #8860
DiCor....
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
Bob Denman is offline   Reply With Quote
Old 05-16-2020, 06:44 PM   #5
Junior Member
 
Brand: Thor Motor Coach
Model: Thor Fun Mover
State: Florida
Posts: 14
THOR #3112
Some RV manufacturers put out a chart for sealants. You can put in a search, such as, Winnebago sealant chart. They list the type of sealants for different areas (joints, trim, roof...) I did this because Thor would not respond, and apparently they don't like their charts to be available. I just picked a manufacturer that had the same build materials.
__________________
Cliff10 is offline   Reply With Quote
Old 05-19-2020, 06:48 PM   #6
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 32N
State: Tennessee
Posts: 101
THOR #18316
Quote:
Originally Posted by Travelin' Texans View Post
DO NOT use any silicone caulk you can buy at your local hardware store anywhere on your RV.
The best if I recall is ProSeal or ProFlex by Geocel for the seams with Dicor for the roof.
I agree with this. No silicone. Geocel ProflexRV for seams and Dicor lap sealant for the roof.
__________________
reminckv is offline   Reply With Quote
Old 05-19-2020, 09:10 PM   #7
Senior Member
 
Brand: Thor Motor Coach
Model: 2019 Freedom Elite 30FE
State: New York
Posts: 178
THOR #16600
So I have a local RV mobile repairman come by to show me some things. I asked him to caulk the outside of the rig. He used Proflex for the walls.
__________________
raffaelli is offline   Reply With Quote
Old 05-20-2020, 11:29 AM   #8
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 3,352
THOR #12751
I should be done with caulking and sealing on my Magnitude for the foreseeable future....... I think it is just too tough to try and stay on top of preventing leaks by checking the Dicor every 3 to 6 months and having to continually add more caulking. Then eventually removing all of the old Dicor and redoing it all again is just more than I want to do.

My 2020 Magnitude was manufactured in April 2019 and I bought it in October 2019. It spent half the winter in enclosed storage after I finished having a pole building built for it to protect it from mice, weather, etc. The Dicor is still in very good condition at this point.

Last weekend I cleaned the roof with BEST Roof Cleaner and Protector. I was surprised how it changed the Dicor from dark gray to bright white during the cleaning process.

I then used EternaBond Tape and covered every seam on the roof where Dicor was used for sealing. Skylights, Fans, Sewer Vents, the Winegard ConnecT 2.0 mounts and wring entry point, Solar wiring entry point, Ladder Mount as well as the front and rear cap seals that ran the width of the roof. I made sure to overlap the EternaBond past the Dicor so it sealed around all of the edges.

In my opinion, EternaBond is the best thing to use for long term sealing and leak prevention as well as roof repairs. I keep a roll in the coach in case the roof ever gets damaged unexpectedly while on the road.

The downside is that it takes some work to remove it if you have to replace something like a Fan but once you put it on you don't have to be climbing on the roof every 3 - 6 months to be inspecting and adding / replacing the Dicor.
__________________
Judge is offline   Reply With Quote
Old 05-24-2020, 01:16 AM   #9
Member
 
Brand: Thor Motor Coach
State: Wisconsin
Posts: 34
THOR #16692
Why can't silicone caulk be used?
__________________
dand is offline   Reply With Quote
Old 05-24-2020, 01:42 AM   #10
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 1,984
THOR #11781
Quote:
Originally Posted by dand View Post
Why can't silicone caulk be used?
Yeah, why not?
__________________
Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
Lt Keefer is offline   Reply With Quote
Old 05-24-2020, 02:35 AM   #11
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 32N
State: Tennessee
Posts: 101
THOR #18316
I wouldn't say that you can't use it. Based on my experiences, there are much better products. My experience is not as extensive as some others but it does include resealing every external seam on a 20 year old class c and a few seams on a 4 year old class A. The areas on the class c that were previously sealed with silicon were in the worst condition due to a lack of adhesion. They were also by far the most difficult to "clean up" such that new sealant could be applied. I can't confirm, but have always heard that the preferred sealants won't adhere to old silicone.

In my experience, the Proflex RV product is excellent in both adhesion and appearance although I found it difficult to apply without the use of painters tape due to it's tackiness (I'm not great with a caulk gun).

As far as the roof goes. The same holds true as far as silicone failing to maintain it's bond to the other materials and it's difficult to remove and replace with the correct roofing sealant (Dicor).
__________________
reminckv is offline   Reply With Quote
Old 05-24-2020, 11:50 AM   #12
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,094
THOR #8860
Does anyone know if the Flex-Seal products are silicone based?
__________________
Bob Denman is offline   Reply With Quote
Old 05-24-2020, 12:55 PM   #13
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 32N
State: Tennessee
Posts: 101
THOR #18316
On Geocel’s website they have 5 product categories of sealants/adhesives. One is silicone. The Flexseal RV is in a category called “solvent based”.

The contents list on the tube does not contain silicone.
__________________
reminckv is offline   Reply With Quote
Old 05-24-2020, 01:10 PM   #14
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,094
THOR #8860
https://www.thorforums.com/forums/at...1&d=1590325846
Attached Thumbnails
Click image for larger version

Name:	Tanks A Bunch.jpg
Views:	101
Size:	180.3 KB
ID:	23875  
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
Bob Denman is offline   Reply With Quote
Old 05-26-2020, 04:12 PM   #15
Junior Member
 
Brand: Still Looking
State: Wisconsin
Posts: 8
THOR #14830
Quote:
Originally Posted by raffaelli View Post
I have poked around and found as many opinions about which caulk to use as there are caulks available. My message to Thor has gone unanswered.

I have a few areas on the outside of the rig that I need to re-caulk. These are seams of moldings and trim, non roof stuff.

What caulk to you guys recommend?

This company helped me decide the best caulk for my application and very easy to work with.

rvroofandwall
__________________
xchawk is offline   Reply With Quote
Old 05-26-2020, 07:39 PM   #16
Senior Member
 
Travelin' Texans's Avatar
 
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,656
THOR #3610
Quote:
Originally Posted by dand View Post
Why can't silicone caulk be used?
Most of the joints on a RV will need recaulked occasionally, some regularly, with using silicone caulk ALL of the old will need to be removed before the new can be applied as silicone with not stick to silicone & it's a huge PITA to remove.
__________________
Danny & Linda
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Currently RV & truckless
Replacement undetermined
Travelin' Texans is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 01:42 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2