Mandrel. Furnished complete with washers to fit available disc sizes, Typical Applications. Removal of paint and epoxy coating, surface rust and residue, corrosion, light weld splatter, dirt, mill scale and other similar surface contaminants. Surface prep before coatings are applied. Surface prep before welding; cleaning and conditioning afterwards. Applying fine finishes. A web of strong synthetic fibers and quality abrasive, bonded together by a smear-resistant adhesive for cleaning, conditioning and finishing a multitude of materials, quickly and easily with little loading.