Bostik Pro PU91 Polyurethane Construction Sealant 300ml Black

• Extremely elastic\t • High modulus\t • Bubble and primer free • Professional grade • Interior and exterior use BOSTIK PRO PU91 CONSTRUCTION POLYURETHANE SEALANT is a professional grade polyurethane sealant developed for sealing construction joints subject to high movement. This black PU sealant has a high modulus formulation and is extremely elastic with up to 25% movement capability. Suitable for interior and exterior applications, Bostik PU91 is bubble and primer free, can weather environmental stress, and is ideal for sealing joints that will experience a lot of movement and traffic, such as gallery floors in high rises, or warehouse floors. • Developed for construction joints subject to high movement • +/- 25% flexibility - allows for movement