Stop Leak Sealer Spray 400mL Roof/Gutter Sealant Waterproof Spray | Long Lasting Waterproof Sealant Spray for Gutters, Flat Roofs, Sheds, Caravans & Drain Pipes - Fills, Seals & Stops Leaks

The JENOLITE Stop Leak Sealer Spray is a great solution if you have irritating leaks in your gutters, roofs or other surfaces. Honestly, I was sceptical. We have had a 15mm Perspex joined roof leaky on and off for the last two years and I just did not want to replace it with so much other DIY going on. All my other fixes, tape, sealant, more edging, larger flashing, worked for a while, but started leaking again within three to four months. Then I used this spray over a year ago and it has not leaked since. I was so impressed that I even bought some to help my mother-in-law with a similar issue. You MUST properly prepare the area—I mean really prepare it. I learnt this the hard way. The first time, I just wiped it down and sprayed it and within four weeks, it started peeling and looked like fish scales! If you take an extra 20 minutes to ensure that the surface is clean and completely free of oil and dirt, this stuff works. The spray dries quickly. Just shake it up and apply in small, thin layers; do not try to empty the can in five minutes. Let each coat dry properly. Unlike some other sealers, it creates a semi-flexible, watertight seal that will not crack over time. However, I am not sure how well it would perform in areas with a higher movement. I have used this on metal, concrete and plastic. A week after application, we had significant rain—no leaks, no peeling… nothing. It is also UV-resistant, so I am not worried about it breaking down in the sun. When I inspected the area about 12 months later, while doing other work, it was still in good shape. I suspect this is because the spray seeps deeper into the gaps compared to tape and general sealant. This is a solid leak fix. I originally thought it would be just a small-scale temporary solution, but it has lasted more than 12 months and gave me time to focus on other house projects. It saves money on repairs, is durable and is easy to use. If you have leaks, grab a can and try it; you might save yourself hours of frustration!

Worked fine

Sealed a leaking metal roof instantly, leaking through screws, sprayed a couple of coats and no more leaks

Easy to use but now waiting for some rain to see if it works

This stuff really does do what it says on the can. Like anything from this manufacturer, it’s high quality, dries fairly fast if applied in small quantities. Provided the area is cleaned reasonably well it seals without that awful stickiness of mastic. One tin will seal multiple small leaks. A note of caution, this is a temporary fix and would not be strong enough for any pressurised system for any extended period of time, if at all. Its function is mostly to stop that annoying dripping gutter, or a small crack in a flat roof. It will stop a leaking pipe at a poorly fitted union provided the thread isn’t too badly cracked and the leak isn’t huge or the pressure isn’t too high. It’s superb for its primary function and I’d recommend keeping a tin in the garage.

Easy to apply but not thick enough to fill gaps

Jenolite stop leak sealer spray.........First time of using this product and am impressed.....had a leaky gutter and thought I would give it a try and so glad I did....I did three coats with 20 minutes drying time in between coats and no more leaking.....this product works.....

This was easy to apply but unfortunately did not stop the pipe from leaking .

Facile applicazione. Ad oggi, dopo una settimana dall’applicazione, sembrerebbe funzionare come promesso.

Bon produit, j'ai mis ça sur du shingles, ça à l'air efficace

Zuverlässi,schnell. Gute Qualität

Fa il suo lavoro!

Usato sul tetto grandinato, per otturare piccole imperfezioni dopo rifacimento. Ottima tenuta, facile da usare. 😁😁