PU Leather Metal Zipper for Boots — Specification, Uses and Sourcing Notes
PU Leather Metal Zipper for Boots: Specification, Uses and Sourcing Notes
PU Leather Metal Zipper is the version buyers specify for boots 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
PU Leather gives metal zipper its weight-to-strength ratio. 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 | Metal Zipper |
|---|---|
| Base material | PU Leather |
| Standard size | 3# Gauge |
| Common finishes | Anodised Finish, Chrome Plating, Piece-Dyed Finish |
| Processes | Weaving, Water Repellent Finishing, Screen Printing |
| Typical application | Boots |
| Related applications | Luggage, Bags, Upholstery, Backpacks |
| Test standard | WRAP |
| 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 WRAP on the actual base material, not on a substitute.
- Mechanical performance — cycle life after 20 cycles or washes.
- Compliance — WRAP documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Underwear
- Down Jackets
- Socks
- Jackets
- Dresses
- Coats
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 webbing tape, polyester spandex fabric, care label, reflective tape, and the processes most often paired with metal zipper include piece dyeing, moisture wicking finishing, pu coating.
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