It floats, of course. A 14-ounce can of the liquid is supposed to treat 2 to 12 square feet. The check. Imitating the video for Flex Seal, we made our own tiny rowboat with a screen bottom ...

Either give it to a friend or neighbor who can use it, or find your nearest recycling service. Flex Seal Liquid costs around $110 per gallon, which is enough to cover approximately 150 square feet. If ...