I just was out in my garden this afternoon and saw 1 of our planter boxes seemed to have sprung a leak along 1 of the edges. I went to the garage and grabbed my can of Flex Seal, proceeded to clean out the planter box for spraying too. The can permits for quick spraying of my planter box which I sprayed two times. Certainly I only created additional coats soon after the previous one was entirely dry. After spraying I had to test for leaks so I took a bucket of water and filled the box, seeing no leaks was nice. I was surely pleased to come across that the box was fixed soon after testing it by putting some water inside. The planter box is like a brand new one once even more.