Product details:

Flex Seal Liquid is a thick rubberized liquid that you can brush, roll, dip and pour to form a durable, watertight, and flexible barrier. It seals out air, water, and moisture and is mildew, chemical, and UV resistant. The liquid rubber seal is non-hazardous, non-flammable, and safe around plants and animals. It can be used on a variety of surfaces like concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, etc. Available in the color gray.

• Thick liquid that dries to a flexible, watertight rubberized coating.
• Creates a flexible rubber barrier that blocks out air, water and moisture.
• Non-Toxic, Non-flammable, no harmful vapors, UV and chemical resistant.
• Seals and protects from the elements, and extreme temperatures.