In this demonstration we’ll tape off a window. First, we want to dust the edges of the window and remove the debris off the pane of glass and everything surrounding it. In this demonstration we’ll leave about ¾ of an inch on the left side and ¾ of an inch on the right side, so that when we pull the plastic down and add the tape— has a width of 1 ½ inches—we will have all the glass covered. Make sure the tape is laid tight and close to the top of the window and then work the film loose and pull it down. The plastic has a little static so it will stick to the glass. When preparing the exterior of a structure for painting, the hand masker provides a convenient way to protect the areas you don’t want to paint. Another convenient reason to use a hand masker is because it already has tape in place on one side of the plastic.