Speciality Zipper for Outdoor Activities
Waterproof & Water Resistant Zipper
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:
1. Thin TPU Lamination, allowing the underlying zipper tape pattern to show through, creating a textured look
2. Thick TPU Lamination, creating a smooth, uniform surface that completely masks the underlying tape
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.
-
We offer sampling service for free - please reach out to us using the form below:
Standard Nylon - Zipper Physical Properties
| Item | Size #3 | Size #4 | Size #5 | Size #7 | Size #8 | Size #10 |
|---|---|---|---|---|---|---|
| Tensile Strength (N) | ≥ 380 | 400 | 600 | 650 | 800 | 900 |
| Pull Sliding Force (N) | ≤ 4.0 | 5.0 | 5.0 | 7.0 | 7.0 | 7.0 |
| Top Stop Strength (N) | 50 | 70 | 90 | 110 | 115 | 130 |
| Bottom Stop Strength (N) | ≥ 40 | 50 | 80 | 100 | 110 | 120 |
| End Single-Side Top Stop Strength (N) | ≥ 50 | 60 | 70 | 70 | 90 | 120 |
| End Flat Tensile Strength (Including Double-Head Zipper) (N) | ≥ 70 | 80 | 100 | 120 | 120 | 160 |
| Slider Displacement Strength (Including Double-Head Zipper) (N) | ≥ 70 | 80 | 100 | 130 | 140 | 160 |
| Slider Tube Displacement Strength (N) | ≥ 60 | 65 | 90 | 100 | 110 | 120 |
| Slider-Puller Joint Strength (N) | ≥ 90 | 120 | 200 | 250 | 270 | 300 |
| Puller-Pulley Torque Resistance (N·m) | ≥ 0.2 | 0.3 | 0.45 | 0.5 | 0.9 | 1.2 |
| Puller Tensile Strength (N) | ≥ 43 | 58 | 60 | 80 | 90 | 100 |
| Puller Self-Locking Strength (N) | ≥ 20 | 30 | 35 | 50 | 60 | 70 |
| Load Pull Times/Double Cycles | 600 | |||||
|
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. |
||||||
