Multi-purpose, extremely durable polyurethane sealant - Excellent lead substitute for caulking cast iron soil pipe joints and works with or without oakum - Single component polyurethane sealant that cures rapidly to a firm yet flexible, waterproof and weather resistant seal - Can also be used for caulking the perimeters of frame openings, ductwork, wood or masonry expansion joints and for glazing both inside and out - Many uses in the home, construction, automotive, RV and marine environments - Odorless sealant is crack proof, shrink proof and will not produce any fumes while curing - Has excellent adhesion properties to most common substrates such as plastic, wood, cast iron, masonry, most metals, tile, concrete, glass, aluminum, vitreous china and porcelain - When thoroughly dried, withstands great pressure - Air dries - Multiple thin layers set faster than a single thick layer.