#8 Closed-End HydroSeal Waterproof Zipper
A heavy-duty #8 closed-end design providing robust IPX5 sealing, made for high-performance outdoor and marine gear.
- IPX5 Watertight Protection: Engineered with a TPU coating to form a reliable seal against high-pressure water spray.
- Heavy-Duty Construction: The #8 size offers a transverse tensile strength of 970N, ideal for high-stress applications.
- Long-Lasting Performance: Tested to 1200 reciprocating cycles, ensuring a smooth and durable closure for the product's lifespan.
- Closed-End Design: Perfect for pockets, compartments, and access panels where a non-separating closure is required.
Get a Quote for #8 Waterproof Zippers
Get A Free Quote NowKey Features
Heavy-Duty #8 Build
Large-format #8 chain engineered for gear that takes abuse — packs, covers, and marine equipment.
IPX5 Water Blocking
Reliable liquid-water sealing for spray, splash, and heavy rain scenarios.
Closed-End Structure
Fixed bottom stop keeps the seal continuous — no separation point for water to find.
Salt-Spray Verified
Passes 48-hour salt spray testing for marine-environment service.
Find the Right HydroSeal™™ Size

#3 Waterproof Zipper

#5 Waterproof Zipper

#8 Waterproof Zipper

Custom Your Zipper
Technical Data Sheet
| Inspection Item | Test Result |
Compliance Threshold
|
| Transverse Tensile Strength | 970N | >700N |
| Slider Initial Pull Force | 30N | <40N |
| Smooth Sliding Performance | 25N | <30N |
| Abrasion Resistance | 150 continuous reciprocating cycles |
100 continuous reciprocating cycles
|
| Tooth-to-Tape Peel Strength | 28-36N/27-38N/30-41N |
Tooth Engagement Width 1.5cm, >20N
|
| Tape-to-Finishing Peel Strength | 24-33N/27-36N/25-33N |
Tape Body Width 1.5cm, >15N
|
| Reciprocating Test under Load | 1200 cycles | >1000 cycles |
| Waterproof Rating | IPX5 (SGS) |
GB/T 4208-2017 IPX5
|
| Water Penetration Test | No water leakage during continuous 10-minute external surface spray test |
No water leakage during continuous 5-minute external surface spray test
|
| Slider Hardness | 115HV0.3 |
Vickers-Hardness 0.3 Test (>80 HV0.3)
|
| Slider Load Capacity | 170N | >100N |
| Slider Tensile Strength | 165N | >100N |
| Pull Tab Torque Resistance | 345N | >200N |
| Pull Tab Extraction Strength | 255N | >150N |
Trusted Performance in Various Extreme Environments

Backpack & Bag Pockets

Apparel Pockets

Gear & Instrument Cases
OEM/ODM Module: Your Vision, Our Engineering
Millimeter-Perfect Customization
Precision is paramount. We manufacture zippers to your exact length specifications, achieving millimeter-level accuracy. This dedication ensures seamless integration into your application, significantly minimizing material waste, and simplifies your overall assembly process.
Custom Colors for Brand Matching
Match your brand's exact color palette. We provide custom color matching for both the zipper tape and the TPU coating based on the Pantone (PMS) color system, ensuring seamless integration with your product's design.

Specialized Puller Designs with Your Logo
We offer a variety of industrial-grade zipper puller options tailored for different application scenarios, combining functionality, ergonomics, and visual appeal, with the option to customize brand logos upon request.



Custom Material & Coating
Engineered for your specific application. Our zippers are built with high-strength Polyester fabric tape and coated with a high-performance TPU (Thermoplastic Polyurethane) layer. We work with you to ensure the material combination provides the optimal balance of flexibility, durability, and sealing performance.Consult our team of engineers and we will deliver the optimal solution tailored to your specific needs.

SUPPORT & FAQ
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