Abrasive system for polystyrene applications

A kit of parts for abrasion of a working surface with a power tool, the kit comprising an abrading article and a backing pad arrangement comprising at least a backing pad, wherein

• each of the backing pad arrangement and the abrading article individually comprise a surface having a diameter, and the surface diameter of the backing pad arrangement is larger than the surface diameter of the abrading article;
• each of the backing pad arrangement and the abrading article individually comprise multiple peripheral openings, which peripheral openings on the backing pad arrangement and peripheral openings on the abrading article enable transport of debris from the working surface with air flow through the abrading article and the backing pad arrangement, wherein the air flow may be generated by suction connected to the backing pad arrangement;
• each peripheral opening on the abrading article is geometrically similar to a respective peripheral opening on the backing pad arrangement;
• each peripheral opening spans an area that has a diameter, and the diameter of each peripheral opening on the abrading article is larger than or equal to the diameter of a respective peripheral opening on the backing pad arrangement;
• the abrading article is configured to be concentrically aligned on the backing pad arrangement,
• each peripheral opening on the abrading article is configured to be concentrically aligned with a respective peripheral opening on the backing pad arrangement, enabling transport of debris with air flow through the peripheral openings;
• and
• the abrading article comprises a dense backing material that resists air flow through the material,
• wherein when the backing pad arrangement and the abrading article are attached together for abrasion with a power tool, the perimeter of the backing pad arrangement and the perimeter of the peripheral openings on the backing pad arrangement are visible from beneath the abrading article, when viewed from the direction of the working surface.