Waterproof Nylon Coil Zipper
The Derusen waterproof nylon coil zipper is a durable, water-resistant zipper solution designed for outdoor gear, luggage, jackets, and protective covers. As a professional supplier, Derusen offers nylon coil zippers featuring PU-laminated tape and high water resistance, with full support for OEM customization. We provide bulk ordering, samples, and custom specifications to buyers worldwide.
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Product Description
Derusen waterproof nylon coil zipper employs a continuous nylon spiral coil sewn onto a high‑density polyester tape, which is then back‑coated or laminated with a transparent polyurethane (PU) film. This construction seals both the tape weave and the stitch holes, achieving a hydrostatic pressure resistance typically exceeding 1 000 mmH₂O when tested to AATCC 127 or ISO 811. The zipper is supplied in closed‑end, open‑end (left/right insert), two‑way closed (X or O) and two‑way open configurations, with coil sizes ranging from #3 to #10 to match different fabric weights. All components—tape, coil, slider and film—are certified to OEKO‑TEX® STANDARD 100, confirming they are free from substances harmful to human health. The product is manufactured in Derusen’s own facility, where each batch is tested for waterproof integrity, crosswise strength, slider locking force and colour fastness before release.
Technical specification
| Coil material | Nylon (polyamide) monofilament |
| Tape material | 100% polyester, with transparent PU waterproof backing film |
| Slider material | Zinc alloy (standard); acetal or nylon slider available for lightweight or non‑metallic requirements |
| Zipper types | Closed‑end, open‑end (left/right insert), double closed‑end (X or O), double open‑end |
| Coil size (gauge) | #3, #4.5, #5, #8, #10 |
| Standard tape width | 25 mm (smaller gauges); 32 mm and wider for #8 / #10; custom widths available |
| Waterproof rating (hydrostatic head) | ≥ 1 000 mmH₂O (ISO 811 / AATCC 127); higher ratings achievable with reinforced film or double‑layer tape |
| Colour options | Tape, coil and slider colour matching to Pantone, CCC or customer reference; stock colours available |
| MOQ | 500 pieces per style / colour (mixed lengths acceptable); small trial orders welcomed |
| Certification | OEKO‑TEX® STANDARD 100; AZO‑free, nickel‑free |
| Packaging | Bulk chain on rolls, or finished zippers with sliders; customer‑specific labelling and barcodes supported |
| Supply capacity | 300 tonnes of zippers per month (combined metal, nylon and resin) |
How the waterproof seal is achieved and verified
The waterproof function is built into the tape, not the coil. A thin PU film is thermally laminated or solvent‑bonded to the back of the woven polyester tape. Under the heat‑setting process, the film penetrates the weave just enough to close the capillary gaps between yarns, while remaining flexible. The same film covers the area where the coil is stitched, sealing the needle holes. A waterproof slider, typically with a slightly tighter throat and a smooth closure, completes the barrier. Every production lot is sampled and tested to the following minimum standards:
- Hydrostatic pressure (ISO 811 / AATCC 127): pressure applied at a constant rate until three separate points of penetration appear; the average value is recorded.
- Reciprocation test: 500 cycles of opening and closing under a defined load, followed by a repeat hydrostatic test to ensure the seal is not degraded by use.
- Crosswise strength (BS 3084 / ASTM D2061): the zipper chain is pulled laterally until failure; required for heavy‑duty applications.
- Slider locking force: measures the resistance of the slider body to being dislodged from the chain, ensuring self‑locking under tension.
- Colour fastness: to washing, rubbing and light per ISO 105‑C06, ISO 105‑X12 and ISO 105‑B02.
Quality control and batch traceability
In‑house testing before shipment covers:
- Dimensional check (tape width, chain thickness, length tolerance)
- Waterproof integrity (hydrostatic head as above)
- Coil stitching tenacity
- Slider pull‑off force and locking strength
- Resistance to corrosion (salt spray for metal sliders, when required)
- pH value and restricted substance compliance per OEKO‑TEX
Each batch is assigned a unique lot number, and all test data is archived, ensuring complete traceability from raw material receipt to final despatch.
Typical applications
Dry bags & waterproof luggage
Tent doors & outdoor shelters
Marine & outdoor upholstery
Performance apparel & rainwear
Derusen waterproof nylon coil zippers are specified wherever a light, flexible closure must prevent water ingress. Frequent installations include dry bags, boat covers, tent fly doors, waterproof jacket pockets, coolers, medical mattress covers, and waders.
Certification
The entire waterproof nylon coil zipper—tape, coil, film and slider—is certified to OEKO‑TEX® STANDARD 100. This means every component has been independently tested for harmful substances, and the product is suitable for use in articles that come into direct and prolonged contact with skin. The certificate is renewed annually, and a valid copy can be supplied with the shipment documents to assist with REACH and CPSIA compliance.
OEM and supply flexibility
Derusen can supply waterproof nylon coil zippers as continuous chain, bulk‑cut lengths with loose sliders, or fully assembled zippers ready for stitching. Custom options include:
- Printed or branded pull tabs and sliders (embossed, laser‑engraved, rubber‑coated)
- Reflective or glow‑in‑the‑dark tape and slider finishes
- Multi‑colour tape/coil combinations
- Film colour and thickness adjustment for specific water‑pressure requirements
Free samples of stock specifications are available for evaluation (customer covers the courier cost). Lead time for standard colours is typically 10–15 working days; custom colours require an additional 3‑5 working days for lab‑dip approval before bulk production.
Frequently Asked Questions – Waterproof Nylon Coil Zipper
How is the waterproof function achieved?
The waterproofing comes from a transparent polyurethane (PU) film laminated to the back of the polyester tape. This film seals both the weave of the tape and the needle holes created by stitching the nylon coil. A special waterproof slider with a tighter closure completes the barrier, ensuring the zipper can withstand hydrostatic pressure normally exceeding 1 000 mmH₂O (ISO 811 / AATCC 127).
What coil sizes and zipper types are available?
We produce waterproof nylon coil zippers in coil sizes #3, #4.5, #5, #8 and #10 to suit different material weights. Configurations include closed‑end, open‑end (left or right insert), double closed‑end (X or O) and double open‑end. Custom lengths and tape widths are supplied according to the specific garment or bag pattern.
Can I get a sample before placing a bulk order?
Yes, free samples of stock specifications are provided for technical evaluation. The customer handles the courier cost or arranges a collect account. Sample dispatch normally takes 1–2 working days. For custom colour combinations, a lab‑dip or pre‑production sample can be prepared, which may add a further 3–5 working days.
What is the minimum order quantity and typical lead time?
The MOQ is 500 pieces per style and colour; mixed lengths within a colour are accepted to reach the total. For standard stock colours, delivery takes 10–15 working days from order confirmation. Custom colours or special tape/slider combinations require an additional colour‑approval step of around 3–5 working days before bulk production starts.
How do you test the waterproof durability of the zipper?
Every production lot undergoes a hydrostatic pressure test (ISO 811 / AATCC 127) on the finished chain. We also perform a dynamic reciprocation test: the zipper is opened and closed 500 times under defined tension, then re‑tested for hydrostatic resistance to confirm the seal has not degraded. Additional tests include crosswise strength, slider locking force, and colour fastness to washing and light.
Can the zipper be customized with our own branding or special finishes?
Yes, OEM options are available. Sliders can be embossed, laser‑engraved or rubber‑coated with your logo. Tape and coil colours are matched to Pantone or a provided reference. Reflective tape, glow‑in‑the‑dark finishes and custom film thickness for higher hydrostatic ratings can also be quoted on request.
Are the zippers certified for safety and restricted substances?
Yes. All components—tape, nylon coil, PU film and zinc‑alloy slider—are certified to OEKO‑TEX® STANDARD 100. The product is also AZO‑free and nickel‑free. The certificate is renewed annually and can be provided with shipping documents to support compliance with REACH and other international regulations.
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