Two-component polyurethane sealant features: excellent wear resistance, low temperature flexibility, wide range of performance adjustment, high mechanical strength, good adhesion, good elasticity, excellent recovery, suitable for dynamic seams and deformation Seams and expansion joints. Good weather resistance, excellent oil resistance, bio-aging and low price. Polyurethane sealants also have some disadvantages. Such as: can not be long-term heat; light color formula is susceptible to UV aging; single-component adhesive storage stability is greatly affected by packaging and external factors, usually curing is slow; high temperature thermal environment may produce bubbles and cracks; many occasions need bottom Tu. At the same time, the polyurethane sealant is also poor in water resistance, especially the alkali-resistant water.


Two-component polyurethane sealant Scope of application: This product is used in the connection of building materials such as civil construction, transportation, concrete prefabricated parts and filling and sealing of construction joints. Advanced roads, bridges, airstrips, underground pipes, joint seals at joints, and expansion joints and deformation joints in tunnels and buildings.