Kevlar® Para-Aramid
Lightweight, Durable and Strong
History
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.
Composition
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.
Manufacturer
DuPont™
Common Types & Deniers
T-29:Standard Modulus
T-49:High Modulus
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.
Impact
- High strength to weight ratio
- Low elongation to break
- Good heat & flame resistance
- Good chemical resistance
- High cut resistance
- Excellent ballistic properties
Resources
Product bulletin: Kevlar® Distribution Program
Order Kevlar in small quantities - learn more here
| 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 |
| Kevlar | Product/Service Overview | Explore product information and technical properties. | |
| Kevlar® Distribution Program Product | Product/Service Overview | Order Kevlar in small quantities - learn more here |
