Poly Aluminum Chloride Supplier In Chennai Poly Aluminum Chloride Supplier Near By #Chennai #Ambattur #Madhavaram #Poonamalle #Tambaram #Tamilnadu Poly Aluminum Chloride (PAC) is a high-efficiency inorganic polymer primarily used as a coagulant in water and wastewater treatment to neutralize particle charges and clump together suspended impurities for rapid settling and filtration.