Black jack, qt, white, silicone roof patch, exterior use only, 28 oz fill level, heavy duty, rubber sealant that provides the ultimate waterproofing protection from the elements, has exceptional adhesion & flexibility & is compatible with most building materials, use to make repairs on damaged roof areas, in hot or cold climates, waterproof seal will permanently stretch to prevent cracking & peeling, apply with trowel or stiff brush, add universal reinforcing fabric into the repair for permanent repairs & cover with additional layer of sealant, coverage per container approximately 3 sqft, Lifetime limited warranty.