Recycled PET Seam Tape for Activewear — Specification, Uses and Sourcing Notes
Recycled PET Seam Tape for Activewear: Specification, Uses and Sourcing Notes
Recycled PET Seam Tape is the version buyers specify for activewear 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
Recycled PET gives seam tape its strength and surface character. 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 | Seam Tape |
|---|---|
| Base material | Recycled PET |
| Standard size | 8# Gauge |
| Common finishes | Powder Coating, UV Printing, Sandblasted Finish |
| Processes | UV Protection Finishing, Stone Washing, Enzyme Washing |
| Typical application | Activewear |
| Related applications | Suits, Home Curtains, Hats, Scarves |
| Test standard | OEKO-TEX Standard 100 |
| Usual packing | 100 pieces per polybag, 5000 per carton |
Properties that matter in buying
- Dimensional stability — 1% allowance is built into the spec before cutting.
- Colour fastness — tested to OEKO-TEX Standard 100 on the actual base material, not on a substitute.
- Mechanical performance — cycle life after 10 cycles or washes.
- Compliance — OEKO-TEX Standard 100 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.

Common uses
- Shirts
- Gloves
- Yoga Wear
- Activewear
- Caps
- Down Jackets
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 nylon webbing, crochet lace, sewing thread, duchess satin fabric, and the processes most often paired with seam tape include laminating, weft knitting, injection moulding.
Send the reference sample or tech pack and we will come back with a costed specification, a sampling timetable and the compliance documents your market requires.