Non-porous, (0.4 mil) high-density polyethylene film rolls for draping and covering large areas and dust containment. Rolls are dispensed and applied using either the 3M Hand-Masker M3000 or M2000 dispenser systems. Rolls unfold to 6, 9 or 12 ft. Easier and faster to apply than bulk rolls of poly and masking paper. Lets light in so work can proceed when there is minimal or no artificial lighting. Used when preparing for drywall ceiling or wall texturing, floor sanding, exterior wall finishing and painting. Not flake-resistant and should not be used for multi-coat applications.