This Machine Turns Metal to Dust in Seconds! Sandblasting Sandblasting is a process that involves propelling fine particles (typically sand or another abrasive material) at high speed onto a surface using compressed air or a centrifugal wheel. This high-speed impact scours the surface, effectively removing rust, paint, dirt, or other contaminants and leaving it clean and roughened. The rough texture created by sandblasting improves the surface’s ability to bond with paint, coatings, or adhesives