Polyurethane sealant (PU Sealants)
Sealant is a material used to fill voids (holes, joints, joints, etc.) and has two functions of bonding and sealing. Polyurethane sealant, silicone sealant and polysulfide sealant constitute the three major varieties of high-grade sealant.
Polyurethane sealant is widely used in civil engineering, transportation and other industries:
Application in construction - filling and sealing of doors, windows, glass, etc.;
Application in civil engineering - caulking seals on highways, bridges, airstrips, etc.;
In automotive applications - the assembly and sealing of windows (mainly windshields).
Polyurethane sealant has many excellent properties, including: (1) wide range of performance adjustable, strong adaptability (2) good wear resistance; (3) high mechanical strength; (4) good bonding performance; (5) good elasticity , with excellent recovery, can be used for dynamic seams; (6) low temperature flexibility; (7) good weather resistance, long service life of 15 to 20 years; (8) good oil resistance; (9) resistant to biological aging; (10) The price is moderate.