Window seals major role as dust, insects, water, noise and sealing. Steel doors and windows sealed the market generally sealed by PVC, modified PVC, EPDM, elastomer strip (including TPV, TPE, TPR, SEBS), silica and other materials extruded to form a good waterproof, sealing effect, but also has insulation, antifreeze, warmth and other functions. Steel doors and windows sealed good elasticity, strong scalability, and high temperature, long service life.

       Window seals must have a strong tensile strength, good flexibility, but also good temperature resistance and resistance to aging.