Does Flex Seal Work In Gutters. Prepare by cleaning drying and taping off area. Come to think about it most of the things this product promises never get delivered. Flex seal is a super strong rubberized waterproof product that is available as a liquid tape or spray.
The caulk adheres quickly and as it cures it remains flexible. We also used flex seal on a copper pipe with drilled holes of different sizes on an unsealed gutter and on a cracked flowerpot.
Come to think about it most of the things this product promises never get delivered.
The flex seal spray worked there was. Using a gentle sweeping motion cover the entire area with flex seal. Tips for best results before you do anything make sure your gutter is clean. I climbed onto the roof and wondered does flex seal work.