RV.Net Open Roads Forum: Class A Motorhomes: Sealing Maintenance

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Sealing Maintenance

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
dlnc

Southern California

New Member

Joined: 05/09/2008

View Profile





Offline
Posted: 02/23/18 06:03pm Link  |  Quote  |  Print  |  Notify Moderator

We have a diesel pusher with full body and need to do some maintenance....with that I have a few questions;

For the front and rear caps, should I peel off the old tape first or can I just tape over the current tape joint.

Since my coach has full body paint, what is the best sealant to use on the sides where the old sealant is cracking. I cannot use white with the body paint. I am also concerned with the sealant sagging since it will be applied to the exterior vertical surfaces.

Im thinking I may need to find some color sealant to blend in with the body paint.

JR45

Warren/OR/USA

Senior Member

Joined: 03/17/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 02/23/18 06:24pm Link  |  Quote  |  Print  |  Notify Moderator

What coach do you have, what type of roof? I have a fiberglass roof and use this on all the seams, works great.
http://www.campingworld.com/proflex-brushable-sealant
JR45


2006 Country Coach Inspire 360 40ft Genoa Designer Series Cat C9 Samsung 197 RR
Aluminum Radiator was recently replaced with a STEEL & COPPER Bolt Together Radiator w/ updated rubber mountings
SilverLeaf VMS 330
Toad--2011 Ford Edge Sport, Air Force One
">


dlnc

Southern California

New Member

Joined: 05/09/2008

View Profile





Offline
Posted: 02/23/18 07:50pm Link  |  Quote  |  Print  |  Notify Moderator

National Tropical fiberglass roof

FIRE UP

Lake Havasu City AZ

Senior Member

Joined: 03/08/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 02/23/18 11:00pm Link  |  Quote  |  Print  |  Notify Moderator

dlnc wrote:

We have a diesel pusher with full body and need to do some maintenance....with that I have a few questions;

For the front and rear caps, should I peel off the old tape first or can I just tape over the current tape joint.

Since my coach has full body paint, what is the best sealant to use on the sides where the old sealant is cracking. I cannot use white with the body paint. I am also concerned with the sealant sagging since it will be applied to the exterior vertical surfaces.

Im thinking I may need to find some color sealant to blend in with the body paint.


First off,
There's quite a few different kinds of sealant/caulkings in the RV world. There are some for sealing around vents, front and rear cap adjoinments, roof-to-gutter seams and more. Some have properties like "self leveling". What that means is, when you apply it on something like a 14" x 14" roof vent, it will "flow" for a very short period of time and level out but, not run.

Dicor is one of those self leveling sealants and, is ONLY for horizontal surfaces. Do not use it on anything that begins to turn vertical, it will run. As for "tape" well, I'm not a fan of it, never have been. When it comes time for me to re-seal vents, cap seams and more, I use my heat gun and soften the original seams, scrape them off, wipe things down with alcohol and, then lay large beads of Dicor in whatever pattern that seems appropriate for the application. Sometimes I zig-zag back and forth for a wider bead, sometimes I do a "weld" bead. That's where I move an inch forward, then come back a half inch while still laying material, then move forward, back a half, move forward etc. etc. etc. That's when I want a really thick bead.

But, again, there's various caulks/sealants out there in the RV world. Cruise on down to your local RV supplies and check out all of them. Sikaflex is a top brand too for many of these.
Scott


Scott and Karla
SDFD RETIRED
2004 Itasca Horizon, 36GD Slate Blue 330 CAT
2011 GMC Sierra 1500 Ext Cab 4x4 Toad
2008 Caliente Red LVL II GL 1800 Goldwing
KI60ND


diplomatdon

Blaine, WA

Full Member

Joined: 08/31/2015

View Profile



Good Sam RV Club Member

Offline
Posted: 02/24/18 09:54am Link  |  Quote  |  Print  |  Notify Moderator

dlnc, when you say tape is it eternabond? If it is I would leave alone as it really sticks well and lasts. On the roof of my 2001 Monaco and still doing well.Had to remove some around a broken skylight and was quite a job. Good luck, Don

RLS7201

Beautyful Downtown Gladstone, MO

Senior Member

Joined: 10/26/2002

View Profile


Offline
Posted: 02/24/18 03:59pm Link  |  Quote  |  Print  |  Notify Moderator

The RV industry has punished us with Dicor calk for years. It was/is never a permanent solution. As previously noted, over time it needs to be removed and reapplied, due to cracking and unbonding.
A more permanent solution is Sikaflex 715 rubber roof calking.


Richard


95 Bounder 32H F53
460/528 stroker
Web Master
MWPSchooners.com

dlnc

Southern California

New Member

Joined: 05/09/2008

View Profile





Offline
Posted: 02/24/18 07:08pm Link  |  Quote  |  Print  |  Notify Moderator

The front and rear caps unfortunately were factory sealed with tape and is now cracking in numerous places so that will need to be replaced. Im concerned with the seam on the driver/passenger sides that will need to be resealed. Also the different vents on the sides that also have cracking factory sealant. Because its on the side walls I dont know what sealant to use.

Thanks, Dave

tiffy2000

NH

New Member

Joined: 11/23/2017

View Profile


Offline
Posted: 02/25/18 06:02am Link  |  Quote  |  Print  |  Notify Moderator

I think you can heat that tape up with a heat gun and it should come off. I used eternabond tape on rear cap and it's working good for me, I did strip the old caulk off and cleaned well with acetone

Norm

rgatijnet1

Florida

Senior Member

Joined: 06/22/2009

View Profile



Good Sam RV Club Member


Posted: 02/25/18 06:33am Link  |  Quote  |  Print  |  Notify Moderator

Any caulking/sealant/tape is as good as the surface preparation done BEFORE it was applied. Eternabond is a great product, if the surface was clean for it to adhere properly. Dicor is also a fine product if the surface is spotless so that it will not start to come loose at the edges. Clear urethane caulking is great for some vertical surfaces on a painted coach, as long as all of the surfaces are clean and wiped down with a solvent first to remove any wax or other contaminants. I like to keep away from silicone products since there are other materials out there that will last as long and not contaminate your surfaces with silicones that are difficult to remove if you need to do any painting.
There are many fine products out there that will perform well on your RV as long as you spend a lot of time on your surface preparation. Going over an old tape joint may or may not produce good results since you cannot clean the old surface as well as if the old tape/sealant was not there. I recommend taking off all of the old tape, to see if there were any failures in the seal, cleaning the surfaces, and applying new tape. They make a small, one inch wide roller for wall paper seams, that works great for making sure that the tape is properly adhered to the clean surface. If you do it right and take your time, you should be able to get many years of service out of all of the high quality tapes, sealants, and caulks.

Gdlow

Meridian Idaho

Senior Member

Joined: 05/03/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 02/25/18 10:31am Link  |  Quote  |  Print  |  Notify Moderator

One thing I used a couple of years ago is the stuff seen on TV..Flexseal I recall...I cleaned the surface well with acetone and applied it...Still holding up today...


Gary And Cathy
'05 Dolphin 5342
Honda Element following us ">
Pacnats
GS, FMCA
"> Rallys attended
FMCA Albany, Or.'06
FMCA Redmond, Or.'07
FMCA Quartzite, Az. '10...but not again">
Good Sams "The Rally" Redmond Or. '11
FMCA Redmond August 2014
FMCA Indio, Ca 2013


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Sealing Maintenance
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2018 CWI, Inc. © 2018 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS