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While both
Kevlar®
& Nomex®
fibers are
chemically
similar, they
are different in
some ways. Nomex®
is extremely
heat resistant.
It will not char
at temperatures
higher than 675
degrees
Fahrenheit. This
makes it
extremely
desirable in
safety garments
used in
potentially high
heat
applications.
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Fiber Type |
Aramid |
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Finishes |
Soft |
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Thread Construction |
Spun from Staple |
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Sizes Available |
Light: T-27 |
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Medium: T-40, T-60
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Heavy: T-80, T-90
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Advantages |
- Excellent resistance to heat exposure.
- Good resistance to most organic
solvents.
- Not affected by age.
- Excellent mildew resistance.
- Excellent abrasion resistance.
- Superior long-term resistance to heat
compared to Kevlar.
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Comments |
Decomposes quickly if exposed to chlorine
bleach.
High elongation may require special machine
adjustments.
Very expensive when compared to other types of
threads. |
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Mil-Spec |
Approved by the Federal Government to supply
Nomex (Spun) under Federal Specifications A-A-55217
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Nomex® is a
trademark of E.I. DuPont DeNemours, Inc.
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