Key Questions to Ask When Ordering Fiberglass Plied Yarn

21 Apr.,2025

 

Fiberglass Yarn

Fiberglass yarn is formed from fused raw mineral materials or melt glass beads extruded through the super thin hole bushing with 3-20um monofilament after 100- strands plied to single yarn 5.6tex to tex. The fiberglass yarn is clarified with many characteristics. 

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  • Identification: EC9 34X1X2 S110 Y1
  • E:  Glass type
  • C: Continuous yarn
  • 9: Fiber diameter
  • 34: Single yarn tex
  • 1x2: Two single yarn twisted together to one plied yarn; 2x2: Two twisted yarn plied two twisted yarn
  • S: Twist direction
  • 110: Twist number per meter
  • Y1: Sizing type 

Fiber diameter: Due to the bushing size, the fiberglass monofilament is formed 4-20um. Typically textile style yarn fiber diameter stay 4um, 6um, 9um, 11um; 

Fiber Diameter linear Density

BC

150

4 um

33 tex

D

5 um

2.75 tex

900

5 um

5.5 tex

450

5 um

11.2 tex

DE

300

6 um

16.5 tex

150

6 um

33 tex

75

6 um

68 tex

37

6 um

136 tex

E

225

7 um

22.5 tex

G

150

9 um

33 tex

Huayuan Product Page

75

9 um

68 tex

50

9 um

100 tex

37

9 um

136 tex

H

37

11 um

136 tex

25

11 um

200 tex

K

37

13 um

136 tex

18

13 um

275 tex

Glass type: Fiberglass is characterized with various type by different chemical compsition which can finally own the different performance.  C glass, E glass, ECR glass, S glass, AR glass, D glass etc. 

Yarn type: Single yarn from initial filament BC150, DE150, DE75, G150, G75, G37, H75, H90, H37, H25 etc. They are the basic fiberglass yarn for most of fiberglass textiles.
Twisted yarn is making two or more single yarns together by S or Z direction, it can allow it for heavier textiles and higher request for mechanical properties (tensile strength, tear strength, abrasion resistance), thickness,  softness etc. Fiberglass sewing thread is a high twisted fiberglass yarn by BC150 or DE75 with PTFE coated. 
Single yarn has usually initial twist about 28, while direct yarn has no twist. Direct yarn is a flat yarn. 

Special twist:

  1. Twist with stainless steel wire, cooper wire for wire reinforced fiberglass fabric
  2. High twist S or Z 250-380 to fiberglass sewing thread  EC6 68X3, EC6 34X2X3, EC4 34X2X2, EC4 34X2X3, EC4 34X2X4

Enhancing Textile Strength and Durability with Glass Fiber Yarn

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If you are looking for more details, kindly visit Fiberglass Plied Yarn.