MECHANICAL POLISHING Fin-Tech provides mechanical polishing for an array of metallurgies on many different types of process equipment and piping. Mechanical polishing is an operation designed to prepare a metal surface for electropolishing or to satisfy non-critical surface roughness requirements. Under magnification, mill finishes, welds and other surfaces have differing surface characteristics. Mechanical polishing reduces all surface ridges, pits and discrepancies to provide a homogeneous appearance and roughness. Mechanical polishing is accomplished by utilizing abrasive materials on rotary equipment. This can be achieved by hand held tools for difficult to access or unusually shaped parts or automated processes for larger areas depending on project requirements. To achieve a polished surface a series of abrasive grits are applied in a successively finer sequence until the desired finish or surface roughness is achieved.