sia Abrasives part of Robert Bosch GmbH power tools division, headquartered in Frauenfeld, Switzerland, is a world-leading supplier of innovative abrasives and system solutions, with representation in over 80 countries. sia develops, manufactures, and markets complete, customized abrasive systems tailored to specific requirements and applications for the treatment of all surface types. Supporting paint and body professionals by providing the highest quality cutting edge abrasives and systems; designed to improve processes, saving time and reducing costs. We are fully dedicated to surface treatment. After all, surface is everywhere.
