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 in a collision. Temperature: Withstands temperatures above 356 degrees Fahrenheit for some time; the melting point is around five hundred degrees Fahrenheit 2 https://www.webwiki.co.uk/www.ledteks.com/seatbelt-and-safety-belt-webbing