They are designed to prevent drivers and passengers from being completely ejected from a vehicle by spreading out their bodies’ energy over their shoulders, chest, and pelvis rein a collision. Temperature: Withstands temperatures above 356 degrees Fahrenheit for some time; the melting point is around five hundred degrees Fahrenheit Analytical https://www.openlearning.com/u/lamkrogh-ss5ko5/blog/SeatBeltWebbingSafetyAnOverview