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