Polyester has a higher rate of initial loading with a flatter load over time, ranging from 6% to 18%. Polyester has less tensile loss when subject to moisture.
Nylon |
Polyetser | Kevlar |
|
Strength | Excellent | Excellent | Excellent |
Stretch | Moderate | Very Low | Very Low |
Resistance to Abrasion |
Excellent | Very Good | Very Good |
Resistance to UV light | Excellent | Good* | Poor* |
Resistance to Rot/Mildew | Excellent | Excellent | Excellent |
Resistance to Flame | Excellent | Excellent | Very Good |
Very strong, is more resistant to damage from heat, fire and chemicals, making it critical in many military applications.
UV retention – the chart above shows the results of a military test of webbing exposed to sun over 30 months. Nylon webbing retained only 13% of its strength while polyester maintained 56% (Tested in Panama by the US-Army)