Color change of outer shell fabrics after thermal exposure occurs because components of the dyestuff have vaporized or sublimated (sublimation is the conversion of a solid to a vapor without passing through a liquid phase). For example, the black dyestuffs in Nomex
Voice Your Opinion!
Voice Your Opinion!
To join the conversation, and become an exclusive member of Firehouse, create an account today!
Photos courtesy of the Fairfax County, VA, Fire and Rescue Department
Streamlight
Jacob Kelsen
