PL S20 polyurethane selflevelling concrete crack masonry sealant is a professionalgrade sealant for concrete It is a onecomponent, polyurethane, selfleveling sealant for contraction or expansion joints and cracks in concrete floors and decks It cures in place to form a highly resilient and abrasionresistant seal, which resists deterioration caused by weather, stress, movement, traffic and water Its abrasion and tear resistance makes it ideally suited for applications exposed to pedestrian and vehicular traffic