Abstract: An apparatus for evaluating the wear resistance of a weatherstripping of the kind applied to a motor vehicle window frame wherein a window can moveably engage the frame via the weatherstripping, the weatherstripping including a lubricating material, such as flocking, adhered to a base material, whereby the moveable engagement can cause wear of the adhered lubricating material. The apparatus includes first structure for holding a test strip of weatherstripping, a wand having a tapered nose portion, and second structure, coupled to the wand and first structure, for imposing a plurality of strokes of the wand nose portion upon the test strip. Third structure, coupled to the second structure, is for adjusting the amount of force with which the wand nose portion is sought to be imposed upon the test strip during the plurality of strokes. The wand is a thin, flat and elongate glass part having a tapered nose portion.

Abstract: A method and apparatus are disclosed for determining sliding resistance between a surface of a portion of a glass section and a surface of a strip of resilient material, such as an elastomeric weatherstrip, which defines a channel having a longitudinal axis. The apparatus includes a plate which is slidably engaged with a platform and structure for rigidly securing at least one strip of weatherstrip to the plate. Further included in the disclosed apparatus is a device for exerting on the glass section a plurality of forces relative to gravity so that the portion of the glass section passes at a selected rate through the channel along the channels longitudinal axis. Friction between the surface of the glass section and surface of the strip of resilient material results in a portion of the exerted force being transmitted to the plate. A force measuring device, which is coupled to the platform, measures the portion of the force exerted on the glass section that is transmitted to the plate.