Rubber Closed-End Zipper for Bras — Specification, Uses and Sourcing Notes
Rubber Closed-End Zipper for Bras: Specification, Uses and Sourcing Notes
Rubber Closed-End Zipper is the version buyers specify for bras 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
Rubber gives closed-end zipper its strength and surface character. In practice that means the trim behaves differently in cutting, in finishing and in wear: the finish has to be applied before assembly. 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 | Closed-End Zipper |
|---|---|
| Base material | Rubber |
| Standard size | 32 mm Width |
| Common finishes | Glossy Enamel Coating, Epoxy Doming, Rose Gold Plating |
| Processes | Epoxy Coating, Digital Printing, UV Protection Finishing |
| Typical application | Bras |
| Related applications | Bras, Sportswear, Baby Clothing, Uniforms |
| Test standard | EN 71-3 |
| Usual packing | 100 pieces per polybag, 5000 per carton |
Properties that matter in buying
- Dimensional stability — 3% allowance is built into the spec before cutting.
- Colour fastness — tested to EN 71-3 on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 30 cycles or washes.
- Compliance — EN 71-3 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Bras
- Yoga Wear
- Trousers
- Blazers
- Luggage
- Footwear
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 tpu laminated fabric, resin button, leather hang tag, taslan fabric, and the processes most often paired with closed-end zipper include sanforising, warp knitting, singeing.
Tell us the item, the quantity and the delivery window. We will quote it with the sub-processes named, so the lead time you approve is the lead time you get.
