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The main factors to consider when choosing a waterproof zipper are: the beauty of the product and the practical effect of waterproofing. Waterproof zippers should be considered from the following aspects:
1. The waterproof zipper film does not tear.
2. Smoothness, it is generally believed that the better the smoothness of the zipper, the better the quality of the waterproof zipper.
3. The surface of the waterproof zipper film is smooth and delicate, with a smooth feeling similar to leather, which is the appearance of high-quality waterproof zippers.
4. Waterproof effect: The size of the middle seam is directly related to the waterproof effect of the waterproof zipper. If it is too large, it will obviously not have the waterproof effect and lose the meaning of the waterproof zipper itself.
5. The color difference of colored waterproof zippers should be small. The difference between the color of the zipper tape and the fabric is the color difference. The color of the film surface and the color of the tape surface should be controlled within 5%.
6. Service life, the quality of the film attached to the waterproof zipper is directly related to the service life of the waterproof zipper
