Flex Seal products are available on Flex Seal's official website and in many major big-box stores. A store locator on the Flex Seal website lists over 100 stores that carry the liquid rubber sealant coating as of 2015.
Customers find Flex Seal at Wal-Mart, Lowe's, Ace Hardware and Walgreens. Other stores include Dollar General, CVS, Kmart, Target, Rite Aid and Sears. Bed Bath & Beyond, Family Dollar and True Value also carry the product, as do Bealls, Kroger and Meijer.
Flex Seal's website offers its Flex Seal original formula products that stop leaks with just a spray. The site also offers Flex Shot Jumbo, which is a thick rubber sealant that seals, bonds and caulks.