Abstract: A fence for enclosing impurities floating on water including a series of bands of two-ply material with the two plies fused together in selected areas including the entire upper edge and with weighted floating pickets inserted vertically between the two plies up to the fused upper edge with both plies extending beyond each band at both ends of the band, one ply at both ends being wrapped about end pickets which are pressed together to form a juncture between bands and with the other plies extending beyond the bands being folded over one another and sealed together to prevent leakage at the juncture.

Abstract: A fence for enclosing impurities floating on water having an elongated two-ply band of material with the two plies fused together in selected areas and with unfused sections extending between the two longitudinal edges and with unfused sections extending between the two side edges with weighted floating pickets placed within the longitudinally spaced openings.