The resistance of Aramid to high temperatures is best illustrated by the graph illustrating the residual strength after exposure to raised temperatures. Thus we may for example see that after 10 hours of exposure at 200° C it retains 100 % of its strength, or that after 1 hour at 350° C it retains 90 % of its strength.
Semi-static rope holding a mass of 100 kg exposed to a temperature of 400° C (+ or- 50° C) for 15 minutes:
The rope supports a 100 kg mass. It is held clear of a 25 mm bar heated red-hot. It is released against the bar and the time to rupture measured.
(exposure for 100 hours)