Flex Seal Max with even more coverage! Flex Seal is liquid rubber in a can! It sprays out as a thick liquid, seeps into cracks and holes and dries to a watertight, flexible rubberized coating that Stops Leaks Fast! Unaffected by weather. In extreme heat or cold, Flex Seal keeps its hold! Stays flexible and pliable while protecting surfaces from corrosion. Seals out water, last for years. It's like a handyman in a can Apply with the portable, easy-to-use, aerosol spray can Unlike paint, its thick liquid dries to a watertight, flexible, rubberized coating Fill cracks and holes - protects surfaces from rust and corrosion Stops leaks while remaining completely flexible - apply on wet or dry surfaces Covers fast with just one pass (unlike most spray paints) - stops vibrations and deadens noise Perfect for all of your home repairs - transform and protect virtually everything Ideal for arts and crafts, projects and hobbies - once completely dry, it can be painted any color Last for years and will not sag or drip in summer heat - will not crack or peel in winter cold Works On: Wood, Metal, Tile, Concrete, Masonry, Fabric, Glass, Plastic, Aluminum, Porcelain, Dry Wall, Rubber, Cement, some Vinyls and so much more! *Flex Seal may not be compatible with all plastic, vinyls or rubbers Excellent For: Roofs, Gutters & Downspouts - PVC Pipe Repairs, Roof Drip Edges & Flashings - RV's, Campers & Mobile Homes - A/C, Duct Work & Chimneys - Windowsills - Weatherizing - Foundation & Concrete Waterproofing - Sealing Cracks & Holes