The waterproof tape is a kind of sealing device (waterproof, anti-leakage) with a special equipment (hot air seam sealing machine or high frequency heat sealing machine) that is heated and sewed in the needle-car parts of waterproof and airproof products such as raincoats and tents. Rubber strips. It is widely used in leather, nylon outer waterproof, waterproof shoes, raincoats, tents and other waterproof products.