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04-26-2021, 03:02 AM
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#1
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Senior Member
Join Date: Mar 2016
Posts: 420
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Flex paste
I keep seeing this commercial on TV about this product. They say you can seal your RV roof with it. Has anybody tired it. I would be Leary of there claim.
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04-26-2021, 04:45 AM
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#2
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Member
Join Date: Jan 2021
Posts: 71
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Quote:
Originally Posted by gljurczyk
I keep seeing this commercial on TV about this product. They say you can seal your RV roof with it. Has anybody tired it. I would be Leary of there claim.
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I haven't had good luck with any of the Flex Seal products. personally, I wouldn't use it. There are many suitable sealers on the market that are time proven.
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Gregors
Wake Forest, NC
2022 Sundowner Trailblazer 2086
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04-26-2021, 09:58 AM
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#3
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Senior Member
Join Date: Jan 2009
Posts: 5,386
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Disclaimer: I don't have any firsthand experience with any of the Flex Seal products.
I have to admit that the advertisers make them look good on tv. But as with most all the other "as seen on tv" products, I doubt they live up to their claims. Unless it was an emergency, I would not use it on the RV, especially on the roof.
There are some good products out there that are made especially for RVs. A product like Dicor would be what I'd be looking to use.
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03 Itasca Sunova, Workhorse P32 with the 8.1 and 4L85-E
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04-26-2021, 11:31 AM
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#4
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Senior Member
Join Date: Mar 2016
Posts: 420
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Quote:
Originally Posted by Gregors
I haven't had good luck with any of the Flex Seal products. personally, I wouldn't use it. There are many suitable sealers on the market that are time proven.
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I really don’t think they work, I know there spray sealants are really garbage. They won’t even seal bricks on a foundation. Trust me I tried.
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04-26-2021, 12:00 PM
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#5
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Senior Member
Join Date: Aug 2017
Location: Richardson, TX
Posts: 436
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gljurczyk
But, you can make a boat out of it . . . . yeah, right!
Ray
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Ray Skinner
2006 TS Select 45' DL14
12 Ford Focus, 10 HD Streetglide CVO
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04-26-2021, 02:59 PM
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#6
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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Agree with the others that there are better products for your needs, especially on the roof or any area subject to UV.
There may be a use for the paste in an emergency, but you need to be willing/prepared to remove it later for a better quality repair.
As far as the spray sealer, read the directions. Very likely one coat will not suffice to fix what you need to repair, and the product requires 24hrs. between coats. So, how many days will it take to apply three quality coats? More than a delivery of Dicor or other similar produce via Amazon Prime.
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Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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04-27-2021, 06:22 AM
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#7
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Senior Member
Join Date: May 2004
Location: MI
Posts: 2,190
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I put Flex Seal on a sliding bay box I built last summer. The actual box is plywood and I didn't think paint would hold up too well. I found Flex Seal at Lowes and gave it a try. It worked great for that, a fairly thick rubbery coating. I don't think it would work well on a roof because it is rubbery. It seems like everything would stick or stain and be a real pain to clean. I think it would seal, at least temporarily, but the maintenance wouldn't be worth it long term.
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04-27-2021, 06:50 AM
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#8
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Member
Join Date: Apr 2020
Posts: 41
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We had a leak(s) on our Mobile Home metal roof...cuold NOT find any obvious places where it woud leak. used Flex seal white, in a quart can, and used a paint brush to coat ANYwhere that wasn't flat (screws, seams, etc.) Never leaked again...ever... 
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04-27-2021, 07:09 AM
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#9
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Senior Member
Join Date: Aug 2019
Location: MN
Posts: 2,810
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I've used the spray on leaking gutters. Works well.
We fixed a leaking cargo trailer roof with it. Brushed it on all seams. No more leaks, and it seems to be holding up well. Prepped the surface with acetone, and there's no lifting anywhere.
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1993 Rockwood 28' Class C - Ford E-350 7.5L
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04-27-2021, 11:15 AM
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#10
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,338
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In emergency, you buy what available on the road, but otherwise, I agree, as a rule, Flexseal 500% more $$, and NOT as good a life as designated products like Dicor... but you can create MUCH more work for the person doing the final repair?
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(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10 
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04-27-2021, 11:47 AM
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#11
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Senior Member
Newmar Owners Club
Join Date: Jun 2016
Location: Katy, TX
Posts: 841
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Following Hurricane Laura last year in Lake Charles, LA, my son purchased Flex Seal paste and spray which we used to temporarily patch some small holes in the metal roof on his small storage shed --> https://www.walmart.com/ip/Flex-Seal...ll&athena=true
The products worked as advertised to cover the holes and remain in good condition some eight months later. He is in no rush to replace the storage shed roof.
After using those products I learned that Flex Seal also makes a water proof adhesive which I decided to try to re-attached a few loose tiles along the perimeter(skimmer line) skimmer line of my in-ground pool. The Flex Seal adhesive thus far has been fantastic with good adhesion and being able to apply the adhesive to wet tiles and press them into place.
Thus far I'm fan of Flex Seal products for "repair work". Flex Seal is "very sticky" and not easy to work with and for that reason I personally wouldn't use Flex Seal as the "primary" sealant around items on the roof of my motorhome. However, I would not hesitate using Flex Seal to patch a crack in sealant around a roof fan / skylight or small hole.
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Mike & Cindy in Katy, TX
2016 Newmar Ventana LE 4037
2016 Jeep Wrangler Unlimited Sahara
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04-27-2021, 03:51 PM
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#12
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,903
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Be advises some of their products contain petroleum-byproducts, read carefully.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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04-27-2021, 07:19 PM
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#13
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Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,525
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What is the fascination with FlexSeal...just a huckster on TV with a marketing budget. Must be brothers with the pillow guy.
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2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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