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Corrosion Prevention Air Water Resistant Zipper For Dry Bags , Flexible Cover
1. ï¼ Out-door gears
2. ï¼ Watersports clothing; Tents, flexible covers
3. ï¼ Bags and backpacks for daily use and outdoor activities such as cycling, biking, sailing, hiking, climbing ...and various others.
4. ï¼ Diving suits (dry suits, wet suits) ; Protective clothing for leisure, safety and industrial applications (gas and chemical protection)
The technical info
The utility model discloses a novel nylon air-tight and waterproof zipper which comprises a zipper belt and
zipper teeth, wherein,
The nylon zipper teeth are arranged on a high-strength terylene mesh belt, a layer of TPU (thermoplastic
polyurethane) is arranged on the zipper belt and the zipper teeth which are arranged at the front face of
The TPU layer is leaked into the gap of the zipper belt to form a mixing layer with the zipper belt, and the
half side of each zipper tooth is safely coated and protected by the TPU (thermoplastic polyurethane).
When the zipper teeth are closed.
The peripheral TPU (thermoplastic polyurethane) of the zipper teeth is tightly combined together, the gap
of the zipper can be well sealed with upper zipper teeth and lower zipper teeth, the thickness of the TPU
layer of the zipper tooth is larger than that of the TPU layer of the zipper belt, and a convex edge is formed
by adapting the TPU to coat and by the integral design.
The utility model has the advantages of durability, low cost, water and air resistance, ultraviolet ray
resistance, corrosion prevention, ageing and abrasion resistance, and the like.
The DaSun Zipper will hold 200 mbar air pressure. The DaSun Zipper is less air-tight than the DaSun
Zipper but is easier to open or close. Heavy bending may cause leakage. Please try to avoid!
The DaSun Zipper is highly resistant to damage caused by dirt or sand. However if dirt or sand are
present, the zipper should be cleaned with soap and water. Dirt particles can affect the sealing function if
they get caught between the teeth chains. If the DaSun Zipper closure is used to protect life or sensitive
material, the sealing function and cleanness of the chain area should be double checked prior to every
For the sealing function the DaSun Zipper requires a fairly strong pull of the slider. Please allow a slightly
higher pulling force as compared to regular zippers. A wet surface or lubricant on the outer flanges of the
sealing profile reduces the pulling force greatly.
Oil and petrol
Hydrolysis (normal temperatures)
Hydrolysis (extreme temperatures and humidity)
-30°C - +80°C
Light acids and alkalis (normal temperature)