BLU DA SERIES LIQUID POLYDADMAC PolyDADMAC Liquid Supplier for Russia & CIS Markets BLU DA Series High-Charge Cationic Polymer for Water Treatment, Mining, Oil, Paper and Industrial Wastewater Bluwat Chemicals supplies the BLU DA Series PolyDADMAC Liquid, a high-charge cationic polymer developed for drinking water purification, municipal and industrial wastewater clarification, sludge dewatering, mining, paper-making, textile processing and oily wastewater treatment.