Cool, I have sealant just starting to crack around roof rack and getting to those front and rear seams, it sure looks easier that a using a $#@#$ caulk gun. Can I just put it over older cracked caulk, if it is too difficult to remove the old? The caulk is still pliable but cracking on the top layer now.
From what I recall and I add a link to etenabond. Clean the area remove any loose caulk and apply it right over the old caulk. I think I would seal any holes and cracks first. That way you would be doubly protected. They offer a primer, if needed, and you'll will need a roller to press it on. They make a kit in white for the front that is wide enough to overlap the old seem and caulk. It seems that most people will still use a small amount at the edges just to make sure. I'll also attached a U-tube video on the subject.
www.eternabond.com Click on RV repairs. Also, I spoke to them on the phone and they were very helpful.
Great stuff . I went over all the seams and around everything except the ac units , basically everything that had been caulked on the roof . The self leveling caulk needs checked every year and always need touch up. The tape has a life of 20years . I still check the roof but it still looks great. It’s a bit of a chore must clean where you put it and use a roller on it but it’s worth the trouble and expense I think . And as others have said it’s good to have in the tool box for all kinds of emergency repairs .
A quick tip. If you don't have a roller, or can't find it, grab the biggest socket you've got and use that. What I did/do, since I don't even have a roller. Of course, as an ex-farmer, I have sockets over 2". :-)
2002 GMC Sierra 2500 HD Duramax Crew Cab 4x4 * Banks Monster Exhaust * B&W Turnover Ball with 5th Wheel Companion * 2017 KZ Durango 1500 D277RLT Fifth Wheel * 1936 John Deere Model A * 61 Year International Flying Farmer Member
Love the stuff. Used on our first, second, & now current trailer. Also used to seal the FIL's trailer too. I clean up the old caulk, add new where needed, & tape over. So far nothing I've taped has ever needed recaulking or new tape. I used to cover all caulk on the roof (front & rear seams, vents, skylights, antennas, etc. -- basically anything that has been cut into the roof... with exception of the a/c, as I haven't figured out how to do that yet as it isn't caulked & uses a foam seal). Also great for sealing the slide's roof/seams/sides.