Meta Aramid Thread

Available Winding Type

Available Winding Type-3
Available Winding Type-4
Available Winding Type-6
Available Winding Type-8

Meta Aramid Thread – Premium 1313 Meta Aramid Sewing Thread for Flame Retardant & High-Temperature Applications

Meta Aramid Thread, also known as 1313 Meta Aramid thread (or meta-aramid sewing thread), is a high-performance sewing thread engineered for applications where flame resistance and thermal protection are critical. Made from 100% meta-aramid fiber (PMIA, poly-m-phenylene isophthalamide), this 1313 aramid sewing thread delivers inherent flame retardancy that is molecularly built into the fiber structure – it cannot be washed out, worn off, or diminished over time. Whether you search for “meta aramid thread” or “1313 meta aramid thread,” you are looking for the same premium flame-retardant sewing solution trusted by professionals in firefighting gear, protective clothing, military combat suits, and high-temperature industrial textiles.

What Makes 1313 Meta Aramid Thread Exceptional?

  • Inherent Flame Retardancy: 1313 Meta Aramid thread has a limiting oxygen index (LOI) greater than 28% – well above the 21% oxygen concentration in air. This means the fiber will not sustain combustion in air, does not melt or drip, and is self-extinguishing when removed from the flame source. The flame resistance is inherent to the molecular structure and lasts the lifetime of the thread.

  • Superior Heat Resistance: Continuous use temperature up to 220°C, with short-term exposure tolerance up to 370°C (700°F). The thread shows minimal thermal shrinkage – approximately 1% at 250°C – maintaining dimensional stability in high-temperature environments. Decomposition begins above 370°C, with carbonization starting around 400°C.

  • Excellent Electrical Insulation: Meta-aramid thread provides outstanding dielectric strength. The material achieves H-grade insulation rating and is widely used in motor slot insulation, transformer insulation, and cable wrapping tape.

  • Chemical & Corrosion Resistance: The chemical structure of aramid 1313 is highly stable, resisting corrosion from most high-concentration inorganic acids, alkalis, hydrolysis, and steam corrosion.

Main Features

Firefighter in full turnout gear stands in front of a red fire engine, holding a tool amid sparks and emergency lights.

Color:

Original color and dyed

Specifications:

20s/2 20s/3 30s/2 30s/3etc

Tube type:

Loose tube (170mm, 230mm), paper tube

Usage:

Sewing, Quilting

Material:

aramid fiber

Package:

cardboard box, other

Customization:

Specifications and packaging can be customized

White spool of 1313 Meta Aramid Thread on a plain background, product image for aramid thread

Color:

Original color and dyed

Specifications:

20s/2 20s/3 30s/2 30s/3etc

Tube type:

Loose tube (170mm, 230mm), paper tube

Usage:

Sewing, Quilting

Material:

aramid fiber

Package:

cardboard box, other

Customization:

Specifications and packaging can be customized

Available Winding Type

Available Winding Type-3
Available Winding Type-4
Available Winding Type-6
Available Winding Type-8

Applications of Meta Aramid Thread

1313 Meta Aramid thread is the preferred choice for safety-critical sewing applications where heat and flame protection are paramount:

Thermal protective clothing (PPE): The stitching of the insulation lining and waterproof breathable layer of the firefighter’s firefighting suit.Arc protection clothing, high-temperature resistant workwear for metallurgical, glass, and ceramic factories.

High temperature filtration and industrial dust removal: This is the largest application market for aramid sewing thread. Used for sewing high-temperature flue gas dust removal filter bags for cement plants, steel plants, and coal-fired power plants.

Aerospace and Transportation: Aircraft seat covers, train car interiors, racing suits, etc

Two electricians wearing orange hard hats work on exposed wiring inside an electrical panel.

T.D.S.

SIZE

(S for Count)

TEX

(No.)

YIELD
(meters/kg)
AVERAGE STRENGTH
(cN)

20s/2

60

16660

1080

20s/3

90

11100

1620

30s/2

40

25000

720

30s/3

60

16660

1080

40s/2

30

33000

540

40s/3

45

22200

810

Table

Construction:1313 Meta Aramid Thread

Size:20s/2

TEX:60

Yield:16660

Average Strength:1080

Size:20s/3

TEX:90

Yield:11100

Average Strength:1620

Size:30s/2

TEX:40

Yield:25000

Average Strength:720

Size:30s/3

TEX:60

Yield:16660

Average Strength:1080

Size:40s/2

TEX:30

Yield:33000

Average Strength:540

Size:40s/3

TEX:45

Yield:22200

Average Strength:810