Using open coat technology, ultra-low surface energy resin and excellent performance coating, AP239M offers superb anti-clogging performance and long lasting life on very sticky paint removal processes. Fiber paper base and high performance resin provide AP239M with exceptional self-flexibility, making it softer and softer during the sanding process and able to cope with a wide range of irregular surfaces without breaking. The selected abrasives give AP239M an excellent surface finish when sanding high quality furniture scratches.