SERAFLEX® - The elastic sewing thread for stretch fabrics SERAFLEX® is the ideal sewing thread for all projects involving elastic fabrics. Thanks to its innovative PTT material (with 37% renewable raw materials), it offers exceptional elasticity of up to 65%. This keeps seams flexible and tear-resistant – perfect for clothing that moves with the body. Whether for sportswear, underwear, loungewear, or children's clothing, SERAFLEX® ensures maximum comfort and a permanently elastic seam. It is particularly effective with straight stitches and can even double the elasticity of the seam compared to conventional thread. Product features: Length: 130 m (142 yds) Thickness: approx. Nm 83/3 (dtex 120×3) Tear resistance: approx. 800 cN Material: PTT – 37% from renewable sources Application: Ideal for jersey, stretch fabrics, sportswear, lingerie, and much more. Tip: Use SERAFLEX® as both the upper and lower thread to achieve the best elasticity.
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