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