Kevlar® was first developed by chemist Stephanie Kwolekat at DuPont™ in the 1930's. It was first commercially used in the 1970’s as a replacement for steel in racing tires.
Kevlar® Para-Aramid is an aromatic polyamide that is characterized by long rigid crystalline polymer chains.“Para” refers to the specific linkage position of the aromatic rings. Longitudinal alignment of the hydrogen bonds enables high tensile strength and modulus.
Common Types & Deniers
AP:15% higher tenacity than T-29
KM2:Optimized ballistic resistance
Deniers:200, 380, 400, 750, 800, 1000, 1420, 2160, 2250, 2840, 3000, 7100
Looking to order Kevlar in small quantities? Learn more about our Kevlar Distribution Program.
Kevlar® is a trademark of Dupont Safety & Construction, Inc.
Small quantity orders through our Authorized Kevlar and Nomex Distributor programLearn More
|Property||Standard Modulus||High Modulus|
|Breaking Tenacity (g/d)||23.0||23.6|
|Specific Gravity (ratio)||1.44||1.44|
|Elongation at Break (%)||3.5||2.5|
|Tensile Modulus (g/d)||555||885|
|Equilibrium Moisture Regain at 55% RH (%)||5.0||5.0|
|Creep at 40-48% ult tensile strength (%)||<0.03||<0.03|
|Shrinkage dry air 177 ̊ 30 mins (%)||<0.02||<0.02|
|Melt Point ( ̊C)||None||None|
|Decomposition Temp ( ̊C)||425-480||425-480|
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