Does Flex Seal really work?

Mary....I have heard pros and cons....my husband is not really satisfied but my grandson loves it. I believe it's like almost any...you will have those that like and dislike.

I used it for a hole in my downspout with good success.

It does work....somewhat. Not much like the commercials show. There are lower cost similar products by name brands that do better and have been around for decades.

My husband used it on a small area and it was "OK" but I don't think I would trust it in a boat LOL. It did seal the small crack and stopped water from seeping in about a year ago with no complications so far.

It depends on what you're using it for and how water logged it's going to get. I haven't had good luck with it in a wet scenario.

It worked for me. I used the spray to seal the bottom of a plastic garbage can.

The Flex Seal that gets troweled on is expensive, smells so awful, and is very difficult to work with. I definitely won't use that again. The spray may be better.

My husband used it on a swimming pool pump that was leaking and had good results.

If you wrap it in plastic n boof it