Special Structure Sealing Products
Circular Airtight Zipper
Closed-loop zipper delivering 360° sealing around an opening, IPX8 rated and 60 kPa tested.
Product overview
Circular fully enclosed airtight zipper for 360-degree seamless sealing in military equipment, waterproof equipment, sealed bags and luggage, and protective suits that need a closed-loop sealing structure.
- Material
- TPU
- Waterproof rating
- IPX8
- Seal strength
- 60 kPa
- Size
- #10
Send your opening length, tape width and host material — we quote against the assembly, not a catalogue number.
Published data
Full specifications
Reproduced verbatim from the manufacturer's product data. No value is rounded, converted or inferred.
| Parameter | Published value |
|---|---|
| Chain Width | 10 mm |
| Circumference | Fully customizable |
| Tape Width | 70 mm |
| End Tab | 20 mm |
| Seal Strength | 60 kPa |
| Tensile Strength | 1100 N/5 cm |
| Heat Resistance | -30°C ~ 70°C |
| Material | TPU |
| Slider | Metal/Plastic |
| Process | HF welding, sewing/tape, bonding |
| Weather Resistance | Good |
| Oil Resistance | Good |
| Durability | 3000+ cycles |
| Application | Military equipment, waterproof equipment, sealed bags and luggage, protective suits |
Features
Product features
- Airtight and waterproof sealing performance
- Multiple sizes available
- Custom colours available
- Eco-friendly materials
- IPX6 / IPX7 / IPX8 ratings available
Applications
Where this series is used
The manufacturer's published applications for this product. Each links to the sealing requirements that apply to that use.
Technical guides
How this series is specified
The engineering references buyers use to pin down a specification — ratings, materials and the data a quotation needs to be accurate.
- Airtight vs Watertight vs Waterproof ZippersAirtight, watertight and waterproof are three different sealing levels. This guide compares their definitions, ratings, structure and typical uses — and the one question that tells you which you need.
- Airtight Waterproof Zipper Selection GuideChoose an airtight waterproof zipper in four steps: waterproof rating, size, material and custom specification. Includes the published IPX6–IPX8, #5/#8/#10 and material comparisons.
- Custom Airtight Zipper: Procurement ChecklistA complete procurement checklist for custom airtight zippers: the parameters to supply, the sample validation steps, and the acceptance criteria to agree before mass production.
Also consider
Related series
IPX8Drysuit Envelope Zipper
Silicone rubber drysuit envelope rated IPX8, built for deep-sea pressure and salt water.
- Material
- Silicone Rubber
- Seal strength
- —
IPX8#10 Plastic Airtight Zipper
Heavy-duty #10 plastic airtight zipper with a TPU sealing layer, rated IPX8 and tested to 60 kPa sealing pressure.
- Material
- TPU
- Seal strength
- 60 kPa
IPX8#5 Plastic Airtight Zipper
Compact #5 plastic airtight zipper — IPX8 sealed, 30 kPa tested, for lighter waterproof and airtight assemblies.
- Material
- TPU
- Seal strength
- 30 kPa
Common questions
Questions buyers ask about this product
What product ranges and sub-models does YILON currently offer?
YILON currently covers 9 main product ranges: #10 plastic airtight zipper, #5 plastic airtight zipper, self-healing airtight zipper, PEVA airtight zipper, #5 nylon woven waterproof zipper, #8 nylon woven waterproof zipper, high-speed roller door zipper, circular airtight zipper and drysuit envelope. The #10 plastic, #5 plastic, self-healing, high-speed roller door and circular ranges are published with 3,000+ cycle durability.
Which products use a circular airtight zipper?
A circular airtight zipper achieves 360-degree all-round sealing through a circular closure. It is used in closed-loop sealing structures for military equipment, waterproof equipment, sealed bags and luggage and protective suits, as well as tent and cover openings, medical isolation chambers and flexible storage containers.
How much sealing pressure can an airtight zipper withstand?
YILON airtight zippers reference a 60 kPa sealing pressure test. The pressure actually withstood depends on the size (#5/#8/#10), material, installation method and end structure. The specific figure is subject to your project’s test conditions.
What is an airtight waterproof zipper, and what sealing problems does YILON solve?
An airtight waterproof zipper stops water, air and moisture entering or escaping through an opening. It suits products that need an openable sealed port: military equipment, waterproof equipment, sealed bags and luggage, protective suits, diving gear, inflatable products and industrial high-speed doors. YILON can customise length from 5 cm to 100 m, plus size, tape width, colour, slider, opening style, material and testing requirements.
Quote the Circular to your specification
Length, tape width, colour, slider and opening style are all produced to order. Send the drawing or the host material and we will confirm the build and the lead time.