- Seals out air, water, and moisture
- Mildew, chemical, and UV resistant
- Non-hazardous, non-flammable
- Forms a weatherproof seal
- Seeps into cracks and holes
- Prevents rust and corrosion
- Safe around plants and animals
Pay over time for orders over $300 with Affirm.
Flex Seal Liquid Max (2.5-Gallon, Black)
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. The Flex-Seal Liquid is available in black color.