Custom Zipper — Brass with Soft Enamel Fill
We supply zipper to garment factories and brands, built in Brass with soft enamel fill for denim and workwear programmes. On a trim like this the specification that decides the outcome is slider smoothness across the full length, tested by hand on bulk, so that is agreed in writing before bulk — not discovered when the first carton is opened on the line. Programmes start at 3000 pieces per style per finish.
The failures here are predictable: unclear responsibility when a defect shows up after washing, or colour drift between the approved sample and the bulk trim. We lock material, finish, dimension and tolerance before bulk, and prepare UKCA and REACH documentation so the shipment clears instead of sitting at port while your selling season passes.

Specification
| Product | Zipper |
|---|---|
| Gauge | #8 |
| Type | reverse coil zipper |
| Base material | Brass |
| Finish / process | Soft Enamel Fill |
| Colour options | 12 Pantone-matched shades |
| Packing | packed to your size ratio |
| MOQ | 3000 pieces per style per finish |
| Sampling | 12 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | UKCA and REACH documentation; colour fastness to washing, rubbing and light |
| Ship to | Felixstowe (the United Kingdom) |
What buyers can customise
- Die-Casting — available on Brass, quoted per position and per colour.
- Hard Enamel Fill — available on Brass, quoted per position and per colour.
- Offset Printing — available on Brass, quoted per position and per colour.
- Gunmetal Plating — available on Brass, quoted per position and per colour.
- Black Oxide — available on Brass, quoted per position and per colour.
- Heat-Cut Edge — available on Brass, quoted per position and per colour.
- Soft Enamel Fill — available on Brass, quoted per position and per colour.

How we produce it
- Drawing or reference sample review, with size and finish confirmed
- Material selection and a finish sample or strike-off
- Prototype made to the agreed gauge
- Fit and wash test on the actual garment fabric, then a pre-production sample
- Bulk run with soft enamel fill applied under controlled settings
- In-line inspection, final AQL 2.5 inspection and packing to your ratio
Where it is used
- Denim and workwear — hard-wearing finishes that survive industrial washing
- Outerwear and tailoring — matched to the shell fabric so it drapes with the garment
- Childrenswear and schoolwear — tested to the destination's safety standard
- Bridal and eveningwear — small runs with hand-finished detail
- Uniform and corporate programmes — repeatable spec held on file for reorders

Packing, testing and delivery
Trims are packed to the ratio you specify — by size, by colour or by garment set — with barcodes applied where the line needs them. Test reports for colour fastness to washing, rubbing and light are prepared for the destination market. We ship to Felixstowe with the commercial invoice, packing list and certificate of origin, and hold the approved reference so reorders reproduce the same material, the same finish and the same slider smoothness across the full length.
FAQ
How do you control colour on reorders?
The approved reference and the bulk standard are retained, and every reorder is checked against them before shipment.
Which compliance documents do you provide?
We prepare colour fastness to washing, rubbing and light and the supporting test reports for the destination market.
Can you do small runs across many designs?
Yes — many studio and boutique programmes run small quantities across a wide design set.
Can you match a reference sample?
Yes. Send the trim and we match material, finish and shade, then confirm on a pre-production sample before bulk.
Start your zipper programme
Send us a reference sample, a drawing or a spec sheet and we will come back with material options, a costing and a sampling timetable.