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Sewing Threads of NOMEX® Brand Fiber

NOMEX® is the registered trademark for one of DuPont's high temperature-resistant aramid fibers with exceptional thermal stability and good resistance to degradation by a wide range of chemicals and industrial solvents. SAUNDERS THREAD Manufacturers continuous multifilament and spun Nomex® for a variety of sewing operations. Continuous multifilament Nomex® is available in soft and bonded.

FILAMENT NOMEX®

Tex
Sizes
Government Spec
A-A-50195B
MIL-T-43636A
Approximate
Single End
Strength
Approximate
Yards
Per Pound Soft
40 B/2 (46/400d) 3.4 9,700
60 E/3 (69/600d) 5.0 6,500
80 F/4 (92/800d) 6.0 4,870
120 FF/3 (138/1200d) 10.0 3,075
180 3/3 (207/1800d) 15.0 2,030

Filament Nomex® is available in producer dyed Sage Green, Camouflage Green an Desert Tan and a full range of package dyed colors. Bonded will average about 95% of yards shown.

SPUN NOMEX


Tex
Sizes

Government Spec Type I
A-A-55217B
Spec Requirement
Nominal Break
Strength (lbs)
Spec Requirement
Nominal Yards
per Pound
27 Tex 24/27 (2 ply)
1.6
18,000-19,700
35 Tex 35/40 (3 ply)
2.0
11,500-13,600
40 Tex 40 (3 ply)
2.6
11,000
45 N/A (3 ply)
2.8
10,000
50 Tex 50/60 (3 ply)
3.0
8,200-9,600
70 Tex 70/78 (4 ply)
4.5
6,200-7,100
90 Tex 90/98 (4 ply)
5.5
4,700-5,200

HP II Spun Nomex® EMBROIDERY Thread Tex 27 3,000 yard King Tubes

Spun Nomex® is available in a full range of package dyed colors. All of our Nomex® sewing threads are tested and certified to NFPA standards by Underwriters Laboratories, Inc. and carry the UL® component label. Underwriters Laboratories, Inc. Certificate number MH14954-280400.

FIBER TECHNICAL INFORMATION

NOMEX®: A manufactured fiber in which the fiber forming substance is a long chain synthetic polyamide in which at least 85% of the amide linkages are attached directly to two aromatic rings.

EFFECT OF HEAT: Does not melt. Decomposes at about 700° F.

EFFECTS OF ACIDS & ALKALIS: Unaffected by most acids, except some strength loss after long exposure to hydrochloric, nitrics and sulfuric. Generally good resistance to alkalis.

EFFECTS OF BLEACHES & SOLVENTS: Unaffected by most bleaches and solvents except slight strength loss from exposure to sodium chlorite.

DYES USED: Industrial yarn is nondyeable. Staple is dyeable with some type dyes.

RESISTANCE TO MILDEW, AGING, SUNLIGHT, ABRASION: Excellent resistance to mildew and aging. Prolonged exposure to sunlight causes some strength loss. Good abrasion resistance.

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Updated July 29, 2013