Disposable polythene dust sheet, 12 x 9 ft: thin, semi-opaque polythene (plastic) sheeting intended for use once and then thrown away. It is a higher weight material than the other polythene sheets in the Glaze Supply range, at approximately 150g per 12 x 9 ft sheet. Dust sheets protect floors, furniture and fittings from dust, paint splashes and debris while work is carried out. Lay the sheet flat, secure the edges if needed, and dispose of it after use. Check the sheet is large enough to cover the area you want to protect before you start.