Silicone Open-End Zipper — Specification, Uses and Sourcing Notes
Silicone Open-End Zipper: Specification, Uses and Sourcing Notes
Silicone Open-End Zipper is the version buyers specify when the base material is fixed by performance rather than by price. This entry sets out what the material actually changes, which specification to write into the tech pack, and where the cost sits — the three questions that decide whether the item passes bulk approval.
What it is
Silicone gives open-end zipper its drape and hand feel. In practice that means the trim behaves differently in cutting, in finishing and in wear: shrinkage allowance has to be built into the spec. Buyers who specify the material up front avoid the most common failure — an item that looks right on the sample card and behaves differently in bulk.
Typical specification
| Item | Open-End Zipper |
|---|---|
| Base material | Silicone |
| Standard size | 25 mm Width |
| Common finishes | Yarn-Dyed Finish, Antique Brass Plating, Antique Copper Finish |
| Processes | Yarn Dyeing, Laser Cutting, Calendering |
| Typical applications | Hats, Underwear, Outdoor Tents, Coats |
| Test standard | CPSIA |
| Usual packing | 100 pieces per polybag, 2000 per carton |
Properties that matter in buying
- Dimensional stability — 2% allowance is built into the spec before cutting.
- Colour fastness — tested to CPSIA on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 50 cycles or washes.
- Compliance — CPSIA documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Luggage
- Bridal Gowns
- Trousers
- Sleepwear
- Boots
- Down Jackets
How to specify it
- Name the base material in the tech pack, not just the item.
- Fix the size and tolerance in writing before sampling starts.
- Approve a counter sample made from the actual bulk base material.
- Order the test report against the standard your market requires.
- Retain a golden sample at the factory and a second one with you.
Related reading
Related specifications on this site cover modal fabric, bamboo fabric, drawstring cord, non-woven interlining, and the processes most often paired with open-end zipper include moisture wicking finishing, garment washing, epoxy coating.
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