Dicor 501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

We used this to see all the roof on our pop-up camper. It's a great product, but it must be done yearly especially if you store your camper outside. I used it to seal a few cracks, didn't work that great but it was worth a try and it holds up quite well otherwise.

Great product and smooths out nice and flat. When they say self levelling they mean it. Don’t try to use on anything vertical. Used with dicor roof repair tape and then redid as many things on the roof that I could with what I had left, wish I had bought a other tube. I’ve heard mixed thoughts on removing old sealant before applying new vs just cover the old stuff. Well my old stuff was in good shape except the expected weather checking and cracks so I just went over the old stuff to maintain water integrity. It went over the old just fine and adhered well so far as I can tell. It smoothed the sealant our like new and removed the water traps. If I had a leak I would probably remove the old sealant and start from new but for touch ups, like I said, buy lots!

Do a small trial joint and you will see the "flow" or "settle" rate work. When you work with this often, as I have, you will be pleased with adhesion, finish and how strong and flexible a repair or new seal you get. Don't waste time on hardware store products. Don't risk your RV roof integrity. This is what is required for RV repair and is worth the money.

Good

Works well, seems even better than the stuff the assembly factory uses when they build an RV.