MS building sealant is a modified silane specially designed for the sealing of prefabricated concrete buildings. It is single-component and environmentally friendly. With good adhesion to most building materials such as concrete, cement, aluminum, and stone. It can be widely used in exterior wall caulking and sealing of prefabricated buildings, door and window installation, and road filling. It has low modulus and good expansion and contraction recovery characteristics, can well adapt to the displacement of concrete joints, and has excellent weather resistance and aging resistance.