... drive wave and efficiency, lower water phase permeability in ground layer, and enable water and oil to flow forward at even ... Polyacrylamide (25kg/bag, 500kg/bag, 1000kg/bag) is packed in two-layer bag with plastic bag for inner packaging, woven bag for ... place, to prevent moisture.Avoid heat, humidity, Number of pile layer: less than 20, shelf life: 2 years Notes and Caution ...