SP CS45 Polyurethane Construction Sealant – High Modulus 600ml

Professional Strength. Superior Adhesion. Built to Last.

The SP CS45 High Modulus Polyurethane Construction Sealant is a premium one-component polyurethane sealant engineered for demanding construction and glazing applications. Offering exceptional adhesion, flexibility, and weather resistance, it provides a durable, long-lasting seal for both interior and exterior projects.

Ideal for professionals and DIY users alike, SP CS45 bonds securely to a wide range of construction materials, making it the perfect choice for expansion joints, window and door frames, concrete, aluminium, steel, timber, and masonry.

Performance You Can Trust

SP CS45 has been independently tested and complies with ASTM C920-18 requirements for Type S, Grade NS, Uses T1, NT & A, demonstrating outstanding adhesion, flexibility, durability, and weather resistance for professional construction applications.

Whether you're sealing expansion joints, installing windows, or completing commercial glazing projects, SP CS45 Polyurethane Sealant delivers the strength, flexibility, and reliability professionals demand.

View & Download Product Data Sheet (PDF): SP CS45 Polyurethane