... using cationic-polyacrylamide is several times or dozens of times better than using anionic-polyacrylamide, nonionic- polyacrylamide or inorganic salt since ... dosage, excellent effect and low cost, the effect is better when it is matched with organic flocculation agent particularly. ... moisture. Avoid heat, humidity, Number of pile layer: less than 20, shelf life: 2 yearsNotes and Caution/attention:1, ...