Dual-Slider Airtight Zipper
The zipper teeth are made using a molding process with nylon or polyester monofilament and feature a TPU film-coating technique. Through high-temperature processing, TPU material is applied and fused onto the zipper tape, resulting in an integrated structure. This gives the closed zipper high air-tightness, providing resistance against water and gas penetration.
Model Specifications: #8
Applications: Flight suits, diving suits, escape suits for leaking submarines, decompression suits, hazard protection suits, contamination prevention suits, radiation protection suits, and simple suits for water kayaking.
Air Tightness: ≥100 kPa
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Data Sheet
| Specification | #8 Dynamic Air-Tight Zipper |
| Width | 41-70 mm |
| Length | Customized upon request |
| Air Tightness | ≥ 100 KPa |
| Tensile Strength (Flat Pull) | 1000 N |
| Temperature Resistance | Polyester: -15℃ to 80℃ |
| Polyether: -45℃ to 80℃ | |
| Material | Zipper Tape:Nylon, TPU |
| Slider Materials: Zinc Alloy, Stainless Steel |
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Applications
spacesuits
Water Walking Ball
diving suits
FAQ
What are your standard zipper specifications? Can I request customization?
Our standard zipper sizes are No. 3, No. 5, and No. 8, with detailed parameters listed in the Raw Woven Zipper Quality Standards. Customization options include: Length (tailored to your requirements) Color (standard and custom colors available) Slider/zip puller (various designs; selected models can be engraved with logos)
What is your minimum order quantity (MOQ) and lead time?
MOQ: 500 pieces per order. For quantities below 500, a setup fee of RMB 200 applies. Sample Policy: Free standard samples are available (No. 3/5/8, 20cm length), with freight collect. Lead Time: (based on current factory schedule) Samples: black waterproof airtight zippers within 48 hours; colored and double-tooth types within 3–5 days. Bulk orders (<10,000 pcs): black waterproof airtight within 3 days; colored and double-tooth within 5–7 days. Bulk orders (>10,000 pcs): subject to scheduling. Current production is booked until October.
Do your zippers have certifications? What testing do you perform before shipment?
Yes, our zippers are certified with SGS waterproof certification and ISO quality management system certification. Before shipment, each batch undergoes strict testing: Appearance (visual inspection), dimension (steel ruler), color (colorimeter) Airtightness test (custom testing device) Smoothness test (tensile tester), peel strength, adhesive bonding test Repeated open/close test (manual), jamming inspection 90° bending pull test (manual), packaging inspection
What after-sales service and technical support do you provide?
After-Sales Warranty: 30-day warranty from receipt. Defects caused by material issues or manufacturing (e.g., leakage, airtight failure, broken teeth) are covered with replacement or compensation. Exclusions: man-made damage, improper maintenance (e.g., dirt/sand not cleaned), third-party repair/modification. Technical Support: Instant contact: online chat (EN & CN), support email, emergency hotline (Mon–Fri, 9:00–18:00 GMT+8) Material verification (send us your material for compatibility testing) Processing guidance (temperature, pressure, time parameters for verified materials) Usage & maintenance guide Custom sealing solutions for special applications (e.g., aerospace equipment)
What shipping and payment options do you offer?
Shipping Terms: FOB, CIF, DDP. Long-term logistics partners available for flexible delivery solutions. Payment Methods: T/T and L/C. Detailed terms can be discussed based on order conditions.
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