– JENOLITE Stop Leak Sealer Spray 400mL Roof/Gutter Sealant Waterproof Spray

Worked really well

Hasn't worked fully so far.

Seems to work OK ,would like a thin application tube to stop it going everywhere

I actually used this to tank an under window wall. It worked a treat.

Okay product. Does not always do what it needs to... Stop leaks🧐

This is very good stuff. It sealed the leak in my gutter. No more drips so far.

Quite expensive but deals a leaking polycarbonate conservatory roof very well. Need to apply a few coats, so one can get get used quite quickly, but does the job

Even though l had thoroughly cleaned and prepared my leaking joint and done a text book repair job which seemed to have sealed my gutter corner, this sealer spray completely failed after the first drop of rain during the UK’s current heatwave (July 2026). Very disappointing.

Het doet wat het zegt te doen, en is zeker een aanrader.

Works as it should.

It works. I had to apply several coats. Still had a small leak but when I added another coat it stop. I’m using it on a sprinkler zone valve cap.

super

Das Dichtungsspray ließ sich einfach auftragen und hat seinen Zweck erfüllt. Es dichtet zuverlässig ab und macht einen hochwertigen Eindruck. Ich bin sehr zufrieden und würde es wieder kaufen.