TPU Seam Tape for Coats — Specification, Uses and Sourcing Notes
TPU Seam Tape for Coats: Specification, Uses and Sourcing Notes
TPU Seam Tape is the version buyers specify for coats 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
TPU gives seam tape its drape and hand feel. 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 | TPU |
| Standard size | 6 mm Width |
| Common finishes | Yarn-Dyed Finish, Rainbow Iridescent Finish, Laser Engraved Finish |
| Processes | Digital Printing, Laser Cutting, Enamel Filling |
| Typical application | Coats |
| Related applications | Shirts, Baby Clothing, Kidswear, Footwear |
| Test standard | Bluesign |
| Usual packing | 200 pieces per polybag, 10000 per carton |
Properties that matter in buying
- Dimensional stability — 1% allowance is built into the spec before cutting.
- Colour fastness — tested to Bluesign on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 10 cycles or washes.
- Compliance — Bluesign documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Shirts
- Yoga Wear
- Footwear
- Backpacks
- Kidswear
- Sleepwear
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 zipper slider, eyelet tape, pique knit fabric, hook and eye tape, and the processes most often paired with seam tape include weaving, warp knitting, ultrasonic welding.
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.
