Use of {HEAD ~ internal gas forming compound} to adjust {TAIL ~ coating porosity} to control copper release rates in algae retardant roofing granule products 
to adjust
Use of { HEAD ~ internal gas forming compound } to adjust { TAIL ~ coating porosity } to control copper release rates in algae retardant roofing granule products
OTH OTH HEAD HEAD 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