{HEAD ~ Useful catalytic inks} have {TAIL ~ low viscosity}, e.g. about 20 600 centipoises , preferably 50 500 cp 
have
{ HEAD ~ Useful catalytic inks } have { TAIL ~ low viscosity } , e.g. about 20 600 centipoises , preferably 50 500 cp
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH