Since Flex Seal Liquid Rubber Coating is liquid rubber in a can, it can be brushed on, rolled on, dipped or poured anywhere you need it! It goes on smooth and covers fast to seal out water, air and moisture and to prevent rust and corrosion. It is also mildew and chemical resistant and stops noise and vibrations. The formula is non-hazardous, non-toxic, non-flammable and UV resistant. It is also safe for plants and animals.