Case Study: Custom Chain Trim for a Car Interior Supplier in Turkey
Source:Handcrafted Leather Badges /
Time:2026-09-18
Chain Trim for a Car Interior Supplier in Turkey
A Car Interior Supplier approached us with a chain trim requirement for the Turkey 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
- MOQ that was quoted per colourway rather than per style
- Shade drift between the approved lab dip and the bulk lot
- A zipper puller that broke under pull test at the warehouse
What we specified
| Item | Chain Trim |
|---|---|
| Client type | A Car Interior Supplier |
| Market | Turkey |
| Order volume | 50,000 pieces across 4 specifications |
| Base material | TPU |
| Standard size | 6 mm Width |
| Finish | Chrome Plating |
| Sampling rounds | 2 |
| Delivery window | 10 weeks from PO to ex-factory |
| Compliance | JIS L Standards |
How it was resolved
- We rebuilt the specification around TPU and locked the tolerance before bulk.
- The finish was moved to Rainbow Iridescent 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
- 50,000 pieces delivered inside the 10-week window.
- Unit cost held within 1.5% of the original quotation.
- Inspection-related rejection stayed under 0.5%.
- The specification is now on file, so reorders reproduce the approved sample.
What we would repeat
Approve a pre-production sample made from the actual bulk base material. Substitute material behaves differently in finishing.
Planning something similar?
Tell us the item, the quantity and the delivery window. We will quote it with the sub-processes named, so the lead time you approve is the lead time you get.
