Ziollo RV Roof Lap Sealant - Self-Leveling EPDM Caulk for Rubber Roofs, Seams & Vents - Waterproof Sealant for Motorhomes, Trailers & Campers - White, 1-10 oz Tubes

Bonds well, levels well and holds up great. I have used it multiple times and always have good results.

I can't give you a scientific or long-term review of this stuff, but I used it for the first time a couple of weeks ago just to reinforce some weak areas with the previous sealant had bubbled up and broke or cracked. Yeah, it's more of a band-aid application, but it went on easily, had just the right viscosity to spread and level without going too thin. I gave it a try because it was a bit better price, but it seems to be a fine product. Between then and now, it experience rain, sun, and cold, and went on a 200-mile road trip. When I checked it yesterday, it looked exactly as it did when I applied it... smooth and bright. So, I can't speak for long-term durability, but so far, so good. When I do a more thorough job, I will order this same stuff again.

works well to block water penetration

Seals perfectly

This stuff goes on easy,self leveling and dries fast.It appears to stay flexible too.I’m so happy with the way it covered the seams I’m going to order the big bucket and put it on the whole roof.

Nice price Good deal

I've used Ziollo on my RV, and on two cargo trailers to reseal the seams on the roof. One of the roofs had a leak and if been a yearand holds up great.

I ordered this along with a major brand’s re-roof kit. The sealant that came in the kit was much thicker than this product, which I prefer! This was very watery and runny, and although it needs to be “self-leveling”, this ran down into my gutters and kinda made a mess.. 3 star functional, but much prefer the slightly thicker formula~ Problem is, I couldn’t find that brand’s sealant other than in the complete kit-

Clean all surfaces with acetone first for best adhesion. Product works well and levels nicely. Hot dry days are best for working with it.

This product did a great job on the RV roof. Self levels well, it is very liquid and designed for the top of flat surfaces, would not recommend for walls as it will just run off. It says it dries fast but mine was still very tacky after 24 hours. After two days it was cured very well and looks like it is there to stay. Great product for roof top applications,

Product was a little more runny than I would of liked it but other than that it went on excellent. Fast delivery.

perfect to fix dryed out cracked silicone on rv roof, prep and clean is key. flows very fast so cut a small hole at tip, self leveling is very nice and still thick enough to do top of my windows. once dry it feels very durable and will last years to come

worked great on my last job going to try again thanks