Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Just the job, but it is very sticky!!

Not bad,did it's job the only drawback more came out the bottom than the top

Works very well, takes some time to cure so to speak but works instantly, I have used this during the rain and instantly stopped the leak in my roof, excellent product, used when replacing the roof on my garage with onduline

This was exactly what I hoped it would be when I ordered it. Needed it for roof and a gutter repair. No leaking gutters now although I used it with other repair items too to ensure no leaks. This stuff isn’t the easiest to apply as it is very sticky but that’s its job. You know this is working when you apply it and I would only buy this one again.

It’s ok, but perhaps it’s too soft and flexible for painting over.

I bought this to repair a drain down-pipe that had come loose from it's gutter. It worked fine. I also used it to plug the holes between the brickwork and a DIY plumbed air-conditioning vent. It worked well for that too. Not the easiest substance to clean up and control, but a little boiled linseed oil helps a lot! I've been told that isopropyl alcohol works too, although I haven't personally tried that.

works good

Used this to seal roofing felt overlap easy to apply using sealant gun

Does exactly what it is supposed to be. Smells very "chemical" and handling isn't as easy as normal silicon. But that's no downside since the task requires high-tech material.