Accordingly, the present invention has as one feature the use of {HEAD ~ a powder filler} of {TAIL ~ varying particle size} which minimizes porosity by ability to produce a denser packing 
of
Accordingly , the present invention has as one feature the use of { HEAD ~ a powder filler } of { TAIL ~ varying particle size } which minimizes porosity by ability to produce a denser packing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH