DICOR vs SIKAFLEX vs PROFLEX? | What RV Sealants should I use?

Don't know which sealant to use for your next RV repair? Josh explains the difference between the main types of sealants, including Dicor Lap Sealant, Sikaflex RV, and Proflex RV!

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CHAPTERS
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0:00 - Introduction
0:25 - Dicor Lap Sealants
1:23 - Sikaflex and Proflex
2:26 - Brushable Sealants
2:54 - Wrap Up

[nwitte]

Holy crap!! An actual factual video straight to the point and understandable. Amazing!! Thank you very much.

[apuuvah]

Basically, it's either polyurethane or acrylic. After a quick study, seems like the only real advantage of acrylic is paintability. Things to consider are: 1) UV resistance 2) Flexibility 3) Water resistance 4) Heat/cold resistance 5) Bond strength 6) Curing time 7) Paintability. Pretty much in the order of importance when used outside RV's.

[rcrook]

Thank you so much for the video. This is the best explanation on the different sealants I have found on YouTube. Appreciate ya!

[leopoldbienkowski-gibbs]

Awesome, this is just the information I was looking for! Thanks for sharing!

[jamietrinamolnar]

Dicor also makes a roll on rubberized coating you can use on aluminum roofs. Used it on my 72 Dodge motorhome 3 years ago. Still looks good.

[paulaswiredowsky]

Thanks for the information was so helpful

[remymartin]

Thank you for giving a clear and direct answer!

[dantech]

Dicor also works on aluminum roofs and is my prefered method because it is self healing and can be built up to a thicker layer.
This is from Dicor's home page;

Dicor’s HAPS Free Self-Leveling Lap Sealant creates a secure, secondary seal along the roof’s edges, air vents, vent pipes and screw heads. Compatible with EPDM, TPO and PVC membranes, it adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete. Ideally suited for aftermarket use, the lap sealant is one of the highest volume products sold in RV stores today.

[rafaelaquino]

I would like to know which one would be suitable for this project. RV gutters, gazebo gutters, RV roof drip edge, white gutter extenders that guide rainwater.

[jonpadgham]

Great information thank you! Looking at sealing seams on the roof of my aluminum horse trailer.

[krisg]

*** W*O*W*** Finally somebody who acknowledges fiberglass roofs ! All I ever get on searching, is Dicor Dicor Dicor. So I bought both . But it’s like chewed bubble gum ! Thank YOU for doing THIS video. What do I use to refresh the roof trim that hold the side to the roof ?

[camb]

I have used sikaflex 291 at the shipyard I work at. Its also great stuff and can even be used below the waterline. Great for fiberglass gelcoat. Comes in white and black is sandable and paintable. Not sure how it lines up against the 715 or the 221 but i figured i would throw that one out as well.

[yankeesusa]

I just did some updates to my lap sealant and cleaned it really good and took my time and covered the lap sealant after letting it cure for months, with eternabond. Lap sealant is good to get it out of factory but it's a joke to have to keep applying it. So far after 1 year, no issues and it's easy to clean and inspect.

[canadoescalling]

Aluminum roof trailer- Sikaflex 715 or 221?
Stripping all the old lapseal and starting fresh.
Thanks for sharing!

[Ryan-yisu]

Everything worked well with the old camper from 1971 I just got a 2006 r
R vision, with I guess fiberglass/laminate exterior walls with extremely extremely bad caulking I'm talking inches of horrible all over the place and smears!

The stuff is hard as a rock and I'm not sure how I'm going to do this. I heard mineral spirits. Dawn and then denatured alcohol,

I do have a question. What about tremco, aka trempro ?
What in your opinion is the best for the laminate/ fiberglass exterior walls around windows and everything
Thoughts


What if you have a 1971 camper
With some sort of /coating, membrane over aluminum

[MsMamawawa]

Great video thank you! Important question: How is the removability / replaceability of the sikaflex 221, Once it does age, or if I've used it to install a skylight that needs replacing, etc? I've heard it's difficult...

[Hundert]

Hallo, thanks for trying to help us. I tried the dicor, and it's lousy. It's too thick and forms a skin much too fast. It also caused my rubber roof to bubble up. Big blisters formed. The one I find so far that's much better is the Sikaflex 715. It gives plenty of time before a skin forms and is less thick & pasty and more like honey. It self levels great. I wish Amazon sold it for less cuz it's too expensive. Is there any other brand anyone knows of that's like the Sikaflex 715 but much less expensive and available on Amazon? Thank you so much 💓

[joedirt]

what do you use around the windows and doors

[TheRainHarvester]

Can sikaflex 1A be used for gutters? Does it stick to itself if another coating is applied?

[Grtraveltips]

Excellent informative video! What silicone flexible sealant product do you recommend for caulking the sides of the RV? I take it the old putty caulking must be removed first? Thanks :)