s41

OSTIK S41 SILICONE is a professional-grade neutral cure silicone sealant designed for window and door frame joints. Its low modulus formulation allows up to 25% movement, providing durable, elastic sealing with strong adhesion to most plastics, including PVCu and polycarbonate, as well as both porous and non-porous substrates. Resistant to cracking, shrinking, discolouration, UV radiation, and temperature extremes, it is ideal for glazing applications, polycarbonate sheeting, and perimeter pointing of door and window frames. BOSTIK S41 meets BS EN 15651:2017 Parts 1 and 2 for façade and glazi