What is the flammability of DuPont™ Tyvek®?
DuPont™ Tyvek® is combustible and should be protected from a flame and other high heat sources. If the temperature of DuPont™ Tyvek® reaches 750° F (400° C), it will burn and the fire may spread and fall away from the point of ignition. For more information call 1-800-44-TYVEK. DuPont™ Tyvek® carries a Class I or NFPA Class A fire rating for flame spread and smoke developed index as measured by ASTM E-84.