The composition includes a blended mixture of cellulose fiber, mineral wool, {HEAD ~ boric acid} and {TAIL ~ expanded silicate glass} 
The composition includes a blended mixture of cellulose fiber , mineral wool , { HEAD ~ boric acid } and { TAIL ~ expanded silicate glass }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL