Case Study: Custom Waterproof Zipper for a Hospital Procurement Team in Spain
Source:Solar Decorative Fountain /
Time:2026-09-18
Waterproof Zipper for a Hospital Procurement Team in Spain
A Hospital Procurement Team approached us with a waterproof 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
- A trim that passed sampling but failed in-line because it was never cycle tested
- Cartons packed to the factory ratio instead of the buyer's size ratio
- A compliance document that arrived after the goods were already shipped

What we specified
| Item | Waterproof Zipper |
|---|---|
| Client type | A Hospital Procurement Team |
| Market | Spain |
| Order volume | 2,000 pieces across 2 specifications |
| Base material | Genuine Leather |
| Standard size | 25 mm Width |
| Finish | Epoxy Doming |
| Sampling rounds | 2 |
| Delivery window | 5 weeks from PO to ex-factory |
| Compliance | REACH SVHC Screening |
How it was resolved
- We rebuilt the specification around Genuine Leather and locked the tolerance before bulk.
- The finish was moved to Antique Copper Finish 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
- 2,000 pieces delivered inside the 5-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
Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.
Planning something similar?
Share the programme details and we will propose two alternatives — one optimised for unit cost, one for lead time — and let you choose.



