Preferably the fibers are cracked whereby they exhibit highly reflective surfaces especially useful in {HEAD ~ the reflection} of heat produced by {TAIL ~ a fire} 
Preferably the fibers are cracked whereby they exhibit highly reflective surfaces especially useful in { HEAD ~ the reflection } of heat produced by { TAIL ~ a fire }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL