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

I need to reseal the seam between the fiberglass hightop amd my metal van body. Would you recommend the Sikaflex 227 instead of the 221? I read that it has more flexibility.

So can you go over the original sealant with sikaflex to do spot touch ups or do you have to remove completely. Do they have it in clear?

Thank you for another great video!! Question: What do you use for the sides, vertical, seams,, we have a Itasca Ram VIVA,,,, where the cab seams up against the rv,, any thoughts much appreciated!!

What caulk would you recommend for a painted aluminum trailer?
Thanks

Although these products work at first all that stuff is limited in useful lifespan and becomes so crusty and leaky after a few years in hot sun.
Heres the secret-->Use 4200/5200 to seal your roof penetrations, and youll never have to do it again. I did and my roof is gojng on 8 years and still is sealed lkke the day I applied it.

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...

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.

* 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 ?

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.

What about Sikaflex 715 and TPO roof?

Thank you for giving a clear and direct answer!

What works good in the steel rain gutter on camper van between the steel and the fiberglass roof?

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

What about resealing windows and trim around the side of the travel trailer?

Thank you.

Thanks for good info …😊