Zinc Alloy Bra Underwire for Suits — Specification, Uses and Sourcing Notes
Zinc Alloy Bra Underwire for Suits: Specification, Uses and Sourcing Notes
Zinc Alloy Bra Underwire is the version buyers specify for suits 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
Zinc Alloy gives bra underwire its drape and hand feel. In practice that means the trim behaves differently in cutting, in finishing and in wear: plating and coating adhesion must be tested on the actual base. 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 | Bra Underwire |
|---|---|
| Base material | Zinc Alloy |
| Standard size | 38 mm Width |
| Common finishes | Anodised Finish, Yarn-Dyed Finish, Powder Coating |
| Processes | Yarn Dyeing, Weaving, Anti-Pilling Finish |
| Typical application | Suits |
| Related applications | Uniforms, Skirts, Blazers, Home Curtains |
| Test standard | Sedex SMETA |
| 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 Sedex SMETA on the actual base material, not on a substitute.
- Mechanical performance — abrasion resistance after 10 cycles or washes.
- Compliance — Sedex SMETA documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Suits
- Scarves
- Bras
- Bags
- Bedding Sets
- Skirts
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 cupro fabric, cord end, guipure lace fabric, seam tape, and the processes most often paired with bra underwire include weft knitting, metal stamping, laminating.
If you are comparing suppliers, send us the spec they quoted against. We will quote the same spec and show you where the difference sits.
