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Serafil polyester machine thread 40 black 40 (1200 m) 4000 black


Serafil is a sewing and embroidery thread made from polyester continuous filament. The single yarns are made of endless fibres (filaments) for continuous filament threads. Partially, up to 200 single filaments make up a single yarn (continuous filament). Thanks to their construction, continuous filaments have a smooth, glossy surface and a consistent thread character. Furthermore, they display a very high breaking strength and abrasion resistance.

Serafil is the classic among all sewing threads. It is established since 1955 and suitable for closing and decorative seams. It stands out through its subtle sheen. 


Main uses

  • Shoes
  • Bags
  • Suitcases
  • Belts and small leather goods
  • Automotive sector
  • Techtex sector
  • Home interior sector
  • Embroidery thread for coarse decorative embroidery



Ticket no.    Tex no.  Make-up   Needle size (in Nm)  Needle size (in No.)  
10 270 300m FS 180-220 24-26
20 135 600m FS 120-140 19-22
40 70 1200m FS 90-120 14-19
60 45 1800m FS 80-110  12-18



  • Other colours can be ordered. Delivery time may vary.

  • Standard 14 day return policy. ( read the terms and conditions here: https://www.boomsmawebshop.com/t/faq/returns).

  • Colors may differ from the original. This may be due to different supplies / paint baths and of course the display settings of your computer or tablet.


Brand Serafil
Title polyester machine thread 40 black 40 (1200 m) 4000 black
Color black
Color code 4000
Article number 812.394000

Colour card

Kleurkaart Serafil_met tekst