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Author Topic: What's Better Than Dicor Self-leveling sealant?  (Read 533 times)

capatton

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What's Better Than Dicor Self-leveling sealant?
« on: July 10, 2017, 10:44:57 AM »
I should have stock in Dicor products. Has anyone used something better than Dicor for sealing a fiberglass roof to the metal guttering on their roof? I have to reseal portions of it every time I move my Winnebago. It just doesn't stick, no matter what I clean it with. Any suggestions would be greatly appreciated.

Cheryl
2006 Winnebago Outlook
2013 Chihauhua Mix Rescue Do

John Hilley

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #1 on: July 10, 2017, 11:04:00 AM »
Dicor self leveling is only meant for flat surfaces. You need a lap sealant for that purpose. You can download the sealant call out sheet for your motor home from Winnebago. They suggest a urethane based lap sealant.

2006 Outlook Sealant Callout Sheet
http://www.winnebagoind.com/diagram/2006/06_300_sealant.pdf

WIT Sealant Callout Tip
http://witclub.com/images/media/tip/pdf/1461691276_ServiceTips.WITClub%20Apr-May%2016.pdf
« Last Edit: July 10, 2017, 11:11:14 AM by John Hilley »
2003 Winnebago Adventurer 38G
1999 Jeep Cherokee Sport
1999 Winnebago Brave 35C
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kdbgoat

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #2 on: July 10, 2017, 11:09:56 AM »
I'm not completly sure of the joint you are talking about, but Eternabond tape may also work for you. John Canfield probably knows exactly what joint you're talking about and can tell you if Eternabond would work for you in that situation.
I know you believe you understand what you think I said,
But I am not sure you realize what you heard is not what I meant


2016 Leprechaun 319DS

Gods Country

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #3 on: July 10, 2017, 12:01:15 PM »
Google Geocel.  They have a good RV product line. I have been very pleased with their EPDM sealant and and their
brushable (although thick) pro-flex product.  They likely have something that will suit the need.

John Canfield

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #4 on: July 10, 2017, 12:44:07 PM »
I think you are talking about the radius where the roof "cove" meets the aluminum extrusion on top of the sidewall. You want a flexible sealant, without looking up your sealants, I believe Winnebago uses a polyurethane based version. My coach is in factory service today (one work item is sealing up that joint - again) or I would look at the spare sealants I carry.

Again referencing that particular joint, some have used Etrnabond tape in the hopes of a permanent solution but I've not had any long term feedback about how successful that is. As an experiment I tried some epoxy on the rear corner of the cap where it meets the sidewall but there's enough movement between the surfaces to where the bond broke (as I suspected it would.)
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
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Rene T

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #5 on: July 10, 2017, 02:10:12 PM »
Dicor carries a non leveling sealer for vertical applications, That may work for you. Did anyone use silicone at one time because nothing will stick to silicon.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

ChasA

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #6 on: July 10, 2017, 02:22:09 PM »
I would use 3M Marine UV 4000 (that may be 4200, can't remember for sure), it is very strong and elastic and holds up well against UV.
Apex, NC
2010 Winnebago journey Express 34Y (pre DEF)
2007 Saturn Vue

Wireman134

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #7 on: July 10, 2017, 02:55:23 PM »
I would use 3M Marine UV 4000 (that may be 4200, can't remember for sure), it is very strong and elastic and holds up well against UV.
Yes, 3M UV 4000 is the best. Better than any traditional RV product
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John Canfield

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #8 on: July 10, 2017, 04:35:10 PM »
3M adhesives and sealants are among the very best. Here's their brochure - interesting. Every deck fitting on my various boats had 3M 5200 sealant.
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
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JoelP

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #9 on: July 10, 2017, 04:45:41 PM »
As long as we are on the topic of roof sealants, what is the recommended sealant for replacing the coax feedthrough to the satellite antenna?
Joel from San Jose

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Wireman134

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #10 on: July 10, 2017, 05:36:03 PM »
Dicor does not bond. If there is any chance of movement (expansion/contraction). Dicor will allow gaps and leak
2000 Silverado 1500 EC Z71 5.3L 325 hp DS intune, Airlift, 34" Alu 1.25"radiator, B&M 70266 trans cooler, oil cooler, Vet servo, Mag- Hytec, Pro comp ES9000, SUV brakes
2015 Venture Sonic 220VBH, 300W Solar/350 ahr AGM/1200w inverter, 75W Dual Band Ham base. Camping weight 5,100lbs on dual 2800 axle

John Canfield

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #11 on: July 11, 2017, 06:14:25 AM »
As long as we are on the topic of roof sealants, what is the recommended sealant for replacing the coax feedthrough to the satellite antenna?
I use Dicor (they have various sub-types depending on the gap) for all roof penetrations.
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
Our weather

AStravelers

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #12 on: July 11, 2017, 10:10:34 AM »
IMPORTANT:  If someone ever used silicon sealant to seal that joint, nothing will stick to the joint and you will have to put more down every time you move.  Nothing sticks to silicon, not even new silicon!

If indeed there is silicon in that joint, it will have to be scraped out, possibly sanded down some, before anything will stick.
Al & Sharon
2006 Winnebago Sightseer 29R
2009 Chevy Colorado 4X4

http://downtheroadaroundthebend.blogspot.com/

jubileee

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #13 on: July 11, 2017, 05:06:46 PM »
Geocel  2310 brushable sealant will cover and stick to existing silicon. My BIL gave me a gallon 10-12 years ago and I applied it to all seams on rubber roof on our 92 bounder over silicon, over caulking, and over what ever else was up there. Haven't had a leak since and haven't applied anything else to roof since then. I used a little over a quart out of that gallon. It's a clear,  very brushable product that will run down into cracks, seams, and ect. Also, very sticky and seems to stay flexible.

blw2

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Re: What's Better Than Dicor Self-leveling sealant?
« Reply #14 on: July 12, 2017, 02:27:38 PM »
first I've heard of that Geocel  2310
interesting!
"brushable"....does that mean it goes on like latex house paint....or maybe more like a caulk or tar..... or more like a thin solvent such as mineral spirits?
.....Just for future reference I'm just trying to wrap my head around the stuff, what sort of crack size it would fill, vertical surface use, etc....
Brad (DW + 3 kids)
13 Thor Chateau 31L Class C on Ford E-450
'06 Silverado
'05 Rockwood Freedom 1910 (5-1/2 years)
former tent campers

 

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