By contacting {HEAD ~ the permeated wicking material} with {TAIL ~ the substrate}, controlled amounts of catalyst solution may be applied to delimited areas of the substrate 
with
By contacting { HEAD ~ the permeated wicking material } with { TAIL ~ the substrate } , controlled amounts of catalyst solution may be applied to delimited areas of the substrate
OTH OTH HEAD 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 OTH OTH OTH OTH