The E/PO containing formulations cost less and have a lower viscosity, making {TAIL ~ RIM} or {HEAD ~ LIM} possible 
The E / PO containing formulations cost less and have a lower viscosity , making { TAIL ~ RIM } or { HEAD ~ LIM } possible
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH