What is mass finishing, and how do media, chemistry, and process control affect part quality? In this episode of Seen & Solved, Dave Govoni, Senior Chemist at Hubbard-Hall, explains how manufacturers improve deburring, polishing, burnishing, and surface preparation through better massfinishing processes.

Mass finishing plays a critical role in producing consistentsurface finishes and preparing parts for plating, coating, painting, and assembly. But media selection, finishing compounds, equipment setup, water quality, and process control all influence the final result.

In this episode, Dave shares practical lessons from decadesof helping manufacturers optimize vibratory and centrifugal finishing operations.

You'll learn:

• What mass finishing is and when to use it
• How to choose the right media for different metals and part geometries
• The differences between vibratory and centrifugal finishing equipment
• How finishing compounds improve cleaning and finish quality
• Why flow rates, concentration, and water quality matter
• Common causes of staining, sludge, foam, and inconsistent finishes
• Practical troubleshooting techniques to reduce rework and improve consistency

Dave also shares a fascinating case study from the U.S. Mint, where specially formulated chemistry helped remove oxide from coin blanks before the surface could become permanently burnished.

Whether you work in metal finishing, deburring, burnishing,plating, precision machining, aerospace, medical device manufacturing, or automotive manufacturing, this episode offers practical guidance for improving finishing performance, increasing process consistency, and producinghigher-quality parts.