“Partially thickened” means that {HEAD ~ the coating} is in {TAIL ~ a state} between the two forms in which retains a measure of malleability 
is in
“ Partially thickened ” means that { HEAD ~ the coating } is in { TAIL ~ a state } between the two forms in which retains a measure of malleability
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH