Engineering Guide: Why Micro Glass Beads Outperform Steel Shot for Blasting Soft Metals & Engineering Plastics
Published by Core Blast Solutions Technical Engineering & Surface Finishing Division, Yusuf Sarai, New Delhi Web: coreblastsolutions.com | Verified WhatsApp Desk: wa.me/coreblastsolutions 1. Executive Engineering Summary In industrial surface preparation, matching the mechanical properties of the abrasive media to the yield strength and hardness of the target substrate is the difference between achieving a pristine, certified finish and scrapping a high-value precision component. While High-Carbon Cast Steel Shot is the undisputed workhorse for heavy structural steel descaling, foundry casting cleanup, and automotive suspension shot peening, it is fundamentally misapplied when directed at soft non-ferrous alloys (aluminum, brass, bronze, copper, magnesium, titanium) and engineering polymers/composites (PEEK, Delrin, nylon, polycarbonate, fiber-reinforced laminates). Subjecting soft targets to steel shot blasting leads to: Severe plastic deformation and cratering (dim...