The waterproof zipper is a branch of a nylon zipper that is a specially treated nylon zipper. Commonly used special treatment methods include: PVC film, TPU film, water immersion, waterproof zipper and so on.
The main material used for PVC film waterproof zipper is PVC, the main component is polyvinyl chloride. The TPU film is a film made by a special process using TPU pellets. It inherits the excellent physical properties of TPU and has a wide range of applications. Because TPU overcomes many of the defects of PVC, TPU waterproof zipper is also superior to PVC waterproof zipper in performance. The waterproof zipper of the coating is characterized by no detachment, no whitishness, no embrittlement, low temperature resistance of minus 70 degrees Celsius, environmental protection, softness and water repellency.