Functional Airtight Zippers
Self-Healing Airtight Zipper
Recovers automatically if the chain derails — built for inflatables, rescue gear and any application where a failed seal is not an option.

Product overview
Self-healing airtight zipper with high-sealing construction and automatic recovery features for military equipment, waterproof equipment, sealed bags and luggage, and protective suits.
- Material
- TPU
- Waterproof rating
- IPX8
- Seal strength
- 30 kPa
- Size
- #5
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 | 5 mm |
| Length | Fully customizable |
| End Tab | 20 mm |
| Seal Strength | 30 kPa |
| Tensile Strength | 160 N/5 cm |
| Heat Resistance | -30°C ~ 70°C |
| Material | TPU |
| Slider | Plastic |
| Process | HF welding, 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
Good to know
Keeps a high-sealing airtight structure while recovering automatically after derailing, so the zipper can carry on being used.
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.
- Sealing Solutions for Inflatable Boats, SUPs and TentsWhat an inflatable closure has to do — hold air pressure, survive folding and resist abrasion — and how airtight zipper specification follows from that.
- 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.
- IPX Waterproof Rating Guide: IPX6, IPX7, IPX8What IPX6, IPX7 and IPX8 actually mean, with the IEC 60529 test conditions behind each rating and the limitations of using IPX alone to specify a sealed zipper.
Also consider
Related series
IPX7PEVA Airtight Zipper
Lightweight, eco-friendly PEVA airtight zipper for everyday waterproof products where cost matters as much as sealing.
- Material
- PEVA
- 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.
What is a self-healing airtight zipper?
A self-healing airtight zipper keeps a high-sealing airtight structure while adding automatic recovery: if the chain derails, it resets itself and can carry on being used. It suits inflatable products, rescue equipment and other applications where reliability matters most.
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.
What do the IPX6, IPX7 and IPX8 waterproof ratings mean?
IPX6 means protection against powerful water jets, IPX7 means protection against temporary immersion, and IPX8 means continuous immersion under agreed conditions. When selecting, define the test depth, pressure, duration, mounting method, end structure and whether the zipper must be opened and closed repeatedly.
Quote the Self-Healing 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.