Bostik Pro PU91 Construction Sealant is a professional-grade polyurethane sealant designed for construction joints subject to high movement. This black sealant offers extreme elasticity with up to 25% movement capability and a high modulus formulation. It is suitable for both interior and exterior applications, resisting environmental stress and featuring a bubble and primer-free application. Ideal for high-traffic areas like gallery floors in high rises or warehouse floors, it ensures longevity and reliability in your builds. Features & Benefits: Professional-grade polyurethane sealant. Can handle up to 25% movement capability. Ideal for high movement construction joints. Extremely elastic. High modulus formulation. Suitable for both interior and exterior use. Bubble and primer-free application. Perfect for high-rise gallery floors and warehouse floors. Size: 300ml tube. Colour: Black.