100% PTT (Polytrimethyleneterephthalate)

Product description

Innovative elastic sewing thread SERAFLEX®

Highly elastic and versatile: with our SERAFLEX sewing thread, you are buying exactly the right thread for all stretch fabrics. The secret is its special composition: The innovative raw material PTT allows the sewing thread to stretch up to 65%. We recommend using the sewing thread exclusively for straight stitches. When used as needle and bobbin thread and with a thread tension as loose as possible, its full elasticity comes into effect. This way, SERAFLEX even achieves a sewing elasticity that is twice as high as that of conventional sewing threads.

Whether as sewing thread for women's, men's or children's clothing, for sportswear and outdoor as well as for underwear and lingerie: SERAFLEX masters every challenge!

Available in up to 72 colors and 1 featuring size(s). Not all products have worldwide availability.

Image of a Skyblue colored SERAFLEX® spool
0408 Aqua
2000 White
1000 Eggshell
0778 Muslin
0141 Daffodil
3361 Lemon
0120 Summersun
0892 Star Gold
0122 Pumpkin
1335 Tangerine
0450 Paprika
1336 Vermillion
1054 Brick Red
0104 Candy Apple
0503 Cardinal
0504 Country Red
0106 Winterberry
0128 Sun-dried Tomatoes
0111 Beet Red
0511 Nude
1057 Rose Quartz
0082 Shell
1056 Petal Pink
1429 Garden Rose
1421 Fuschia
1067 Dark Current
0046 Deep Purple
0821 Darkest Blue
0825 Navy
1305 Delft
1078 Fire Blue
1303 Royal Blue
0024 Colonial Blue
0818 Sweet Boy
0271 Winter Frost
0036 Skylight
0698 Blue agate
0485 Tartan Blue
0232 Truly Teal
0409 Turquoise
0018 Luster
1147 Tamarack
70279 Green viper
0092 Bright Mint
1099 Light Kelly
0247 Swiss Ivy
0216 Dark Green
0554 Holly
0420 Olive Drab
0379 Stone
1121 Toffee
0174 Ashley Gold
0899 Bronze
0975 Apple Seed
1002 Very Dark Brown
0428 Chocolate
0387 Brown Mushroom
0285 Caramel Cream
0537 Oat Flakes
0327 Sea Shell
0411 Mystik Grey
0331 Ash Mist
1140 Sterling
0340 Silver coin
0318 Tin
0415 Old Tin
1360 Whale
1283 Deep Well
4000 Black
1426 Vivid Yellow
1428 Vivid Orange
8775 Vivid coral
Available colors for this length: 72
Length 130 m ART.-NR. 7840 No. 120
Linear density: ca. Nm 83/3 (dtex 120*3) Needle size: Nm 70-80

Care Notes
Waschen 60°C Bleichen erlaubt Trommeltrockner normal Bügeln mittlere Temperatur Reinigen mit Perchlorethylen
Product Features
  • Instructions for use:

  • SERAFLEX should be used as both, needle and bobbin thread.
  • Thread tension should only be “as tight as necessary”, meaning as loose as possible.
  • The bobbin thread should also be wound with as little thread tension as possible to prevent the thread from stretching beforehand.

The sewing thread is suitable for the sewing machine.


Excellent elongation properties

Thanks to its innovative raw material PTT, SERAFLEX can achieve an elongation of up to 65%.

  • Double seam elasticity compared to conventional sewing threads

  • The elastic sewing thread makes especially the straight stitch extremely stretchable

  • Oeko-Tex certification

SERAFLEX is manufactured in compliance to internationally recognized ecological requirements and is certified according to STANDARD 100 by OEKO-TEX®. For further information please click here.