Case Study: Custom Metal Zipper for an Independent Boutique in Spain
Source:Artificial Ice Cream Props /
Time:2026-09-18
Metal Zipper for an Independent Boutique in Spain
An Independent Boutique approached us with a metal zipper requirement for the Spain market. The brief was specific: a defined look, a hard launch date and a unit cost that had to survive freight and duty. This case study records what was specified, what went wrong in sampling and how the bulk order was delivered.
The challenge
- Lead time quoted without the plating or dyeing sub-process
- Elastic that lost recovery after three washes
- Shrinkage that only showed up after the first wash
What we specified
| Item | Metal Zipper |
|---|---|
| Client type | An Independent Boutique |
| Market | Spain |
| Order volume | 5,000 pieces across 4 specifications |
| Base material | Aluminium |
| Standard size | 9 mm Width |
| Finish | Mercerised Finish |
| Sampling rounds | 3 |
| Delivery window | 8 weeks from PO to ex-factory |
| Compliance | ISO 9001 |
How it was resolved
- We rebuilt the specification around Aluminium and locked the tolerance before bulk.
- The finish was moved to Epoxy Doming after strike-off tests showed better durability.
- A pre-production sample was approved and retained as the golden reference.
- Production ran with in-line inspection and a mid-run photo report.
- Cartons were packed to the client's own barcode and ratio specification.
Result
- 5,000 pieces delivered inside the 8-week window.
- Unit cost held within 4.5% of the original quotation.
- Inspection-related rejection stayed under 1.5%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.
Planning something similar?
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.
