# PU-30 Low Modulus High Performance Construction Polyurethane Sealant PU-30 is a polyurethane-based, single-part sealant. It is UV and weather-resistant. This elastomeric joint sealant is ideal for various construction applications. Recommended Uses Indoor and outdoor areas for vertical and horizontal applications. Interior and exterior areas for vertical and horizontal applications. Above-grade joints of structures. Restoration of joints in old and new buildings. Parapet co