|
Although
Kevlar's heat
resistance is
not as great as
that of Nomex,
Kevlar's
strength is
superior to all
other fibers. In
fact, Kevlar is
five times
stronger than
steel by weight.
It has become
the thread
choice in those
special high
stress, volatile
applications
that require
extreme strength
and heat
protection.
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|
Fiber Type |
Kevlar |
|
Thread Construction |
Twisted Multifilament |
|
Sizes Available |
Medium: T-40, T-60
|
| |
Heavy: T-135
|
| |
Extra Heavy: T-210,
T-400 |
|
Advantages |
- Very high strength - stronger than
steel.
- Very good heat resistance.
|
|
Comments |
Natural
color is yellow. Available in dyed black
solution.
Very expensive as compared to Polyester or Nylon
sewing threads.
Decomposes at approx. 930o .F
Resistance to degradation during long term
exposure at elevated temperatures is not as good
as Nomex.
|
|
Mil-Spec |
Approved by the
Federal Government to supply Kevlar under
Federal Specifications A-A-55220
|
|
Technical Information |
Tex |
Min. Yards/Pound |
Min. Breaking
Strength |
|
|
40 |
10,000 |
14 |
|
|
60 |
6,700 |
23 |
|
|
80 |
5,000 |
30 |
|
|
120 |
3,350 |
45 |
|
|
210 |
2,100 |
64 |
|
|
400 |
1,050 |
135 |
|
|
450 |
900 |
150 |
|
|
800 |
550 |
225 |
|
Kevlar is a
trademark of E.I. DuPont DeNemours, Inc.
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