Speciality Zipper for Outdoor Activities

Waterproof & Water Resistant Zipper

Two black wetsuit zippers with metal pulls submerged partially in water.

TPU Laminated Water Resistant Zipper

TPU Laminated Zipper is considered as water-resistant that features an additional protective layer against the elements. They incorporate a water-repellent polyurethane film coating on one side, which helps to repel water and enhances the garment's overall appearance.

These zippers come in two lamination thickness:

Close-up of a yellow glossy paper surface with a faint horizontal line.

1. Thin TPU Lamination, allowing the underlying zipper tape pattern to show through, creating a textured look

Close-up of a yellow textured surface with a thin line running horizontally across the center.

2. Thick TPU Lamination, creating a smooth, uniform surface that completely masks the underlying tape

Close-up of black carbon fiber bicycle fender with a zippered design and a plastic attachment buckle.

A black zipper on a rolled-up piece of material, with a zipper pull at the top, appearing to be a protective cover or strap.

Frequently Asked Questions About Water Resistant/Waterproof Zipper

First, we need to understand how water can leak through a zipper. There are mainly two ways this can happen: water can penetrate through the coil chain or through the tape. The TPU lamination acts as a physical barrier on the tape, preventing water from coming into contact with it and effectively blocking liquids and moisture. However, the TPU lamination does not completely seal the gap around the coil, so liquid can still pass through the openings in the coil.
There are basically two types of TPU laminations: matte finish and glossy finish. Most windbreakers and outdoor bags use matte-finished TPU laminated nylon zippers.
Yes, our water-repellent zippers are an excellent alternative to TPU laminated zippers. They are treated with PFAS-free water-repellent chemicals, which are fluoride-free. When liquid comes into contact with the zipper, it forms droplets that easily slide off.
While water-repellent zippers offer protection against the elements comparable to TPU laminated zippers, they are especially well-suited for everyday use, such as rain or accidental spills. Additionally, water-repellent zippers are significantly lighter and more flexible than TPU laminated zippers, making them ideal for bags with zippers placed at corners or areas requiring extra flexibility.
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Standard Nylon - Zipper Physical Properties

  
Zipper Physical Properties

  Zipper Physical Properties
  
      Item
      Size #3
      Size #4
      Size #5
      Size #7
      Size #8
      Size #10
    
  Tensile Strength (N)≥ 380400600650800900
Pull Sliding Force (N)≤ 4.05.05.07.07.07.0
Top Stop Strength (N)507090110115130
Bottom Stop Strength (N)≥ 405080100110120
End Single-Side Top Stop Strength (N)≥ 5060707090120
End Flat Tensile Strength (Including Double-Head Zipper) (N)≥ 7080100120120160
Slider Displacement Strength (Including Double-Head Zipper) (N)≥ 7080100130140160
Slider Tube Displacement Strength (N)≥ 606590100110120
Slider-Puller Joint Strength (N)≥ 90120200250270300
Puller-Pulley Torque Resistance (N·m)≥ 0.20.30.450.50.91.2
Puller Tensile Strength (N)≥ 4358608090100
Puller Self-Locking Strength (N)≥ 203035506070
Load Pull Times/Double Cycles600

        Note:

        1. Puller-pulley torque resistance only applies to zippers with puller bodies directly combined with the puller.

        2. Puller tensile strength does not apply to non-metal pullers.