Flex Seal™ is liquid rubber that lets you create a flexible barrier to seal, protect and stop leaks fast! Simply brush on, roll, dip or pour and the liquid dries to create a lightweight, water-tight rubberized coating that seals out air, water and moisture. The non-toxic, non-flammable formula has no harmful vapors and is UV, chemical and mildew-resistant. Great for roofs, gutters, ponds, bird baths, basements, foundations, tools, cars, RV's, trailers, boats, hobbies and more! (This item can only be shipped to the 48 contiguous United States no expedited shipping). Colors available in Black, White, Clear or Grey. 16 ounce can.