Flex Seal Black Liquid 16Oz

Flex Seal LFSBLKR16, 16 ounce Black Liquid Rubber Sealant.
Starts out as a thick liquid, that can seep into cracks and holes to form a waterproof, weatherproof seal. Forms a durable, breathable, weatherproof, non-slip barrier. Resistant to rain, snow, sun, wind, hail, air, moisture, UV degradation, extreme temperatures and natural weathering. Blocks out air, water, and moisture. Prevents rust and corrosion. Mildew and chemical resistant. Non-hazardous. Non-flammable. Safe around plants and animals.