I bought and used the flex paste EXACTLY as stated on the container. I was attempting to seal a leak around one of the windows of an above ground pool. It did not work on the outside so I used it on the inside. Finally went all the way around the window BOTH inside AND outside. Still leaks! Not a happy camper! I must admit I have used flex tape in the past on a water hose and it did not stick or work. You would have thought I would have learned my lesson. But that was years ago and you only had the one product. You can bet I will not be conned again!