Upon {TAIL ~ subsequent heating}, the dried coating reacts to produce {HEAD ~ a glassy ceramic repair coating} 
Upon
Upon { TAIL ~ subsequent heating } , the dried coating reacts to produce { HEAD ~ a glassy ceramic repair coating }
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD