1)Polyurethane Foam Caulking Sealant, 2)one-part, 3)moistural cure. 4)multi-purpose. YA ... , sawn, sanded and, if necessary, painted and plastered. Polyurethane foam sealant will cure when moisture in the air reacts with the ... cost with fast and convenient installation. YA Polyurethane Foam Caulking Sealant