For gathering and stretchy seams: the thread moves along when the fabric does. The stated size is Ø 0.5 mm × 20 m. Sold as 20 m. Produced from 50 % elastane, 50 % polyamide.
After sewing, let the seam rest before loading it — the material then settles evenly. Elastic threads and tapes give where a firm seam would tear — at cuffs, waists and sleeve hems. Before the first metre, sew a test on a scrap: stitch length and tension matter more here than with a firm thread.
What Prym Elastic-Nähfaden 0,5 mm weiß 20 m 970026 is suitable for
- Gathering and smocking
- Repairs to clothing
- Invisible seams
Frequently asked questions
How do I wind elastic material?
By hand and without tension. Winding by machine inevitably stretches it, and the finished seam draws up later as soon as the tension relaxes. Counting while winding tells you later how far the supply will go.
How do I wash finished pieces?
According to the main fabric, but better not too hot. Heat is what troubles elastic material most, in the water as in the dryer. In a tumble dryer, elastic material ages faster than in any hand wash.
How long does the material last?
Stored dry and dark, many years. What has lain at a window for years turns brittle and snaps when stretched — noticed only once the seam is already in place.
Does it work with any sewing machine?
With most. What matters is adjustable tension and even feeding; a test seam shows both within two minutes. On older machines, check the manual for what the bobbin case allows.
