POM Plastic Bra Underwire — Specification, Uses and Sourcing Notes
POM Plastic Bra Underwire: Specification, Uses and Sourcing Notes
POM Plastic Bra Underwire 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
POM Plastic gives bra underwire its strength and surface character. 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 | POM Plastic |
| Standard size | 6 mm Width |
| Common finishes | Sandblasted Finish, Black Nickel Finish, Nickel-Free Electroplating |
| Processes | Stone Washing, Yarn Dyeing, Weft Knitting |
| Typical applications | Activewear, Socks, Coats, Upholstery |
| Test standard | JIS L Standards |
| Usual packing | 500 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 JIS L Standards on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 50 cycles or washes.
- Compliance — JIS L Standards documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Baby Clothing
- Gloves
- Sneakers
- Skirts
- Blazers
- Swimwear
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 care label, non-woven interlining, satin fabric, tack button, and the processes most often paired with bra underwire include weft knitting, anti-bacterial finishing, electroplating.
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