approximately 2,500 rpm. A so-called 'accelerator bar' detains the bristle tips and by releasing them increases their kinetic energy with which they strike the surface. Immediately after the bristles strike the corroded steel surface, they retract (rebound) from the surface ('single-impact'), which results in corrosion removal and a micro-indentation that exposes the sheer metallic surface. The multitude of such primary impact craters generates a texture and surface which in visual cleanliness and roughness (anchor profile) mimics those obtained by grit blasting processes. The cleaned and coarsened surface is deemed favorable for the subsequent application and adhesion of protective films and industrial coatings. Process and equipment Bristle blasting tools are fabricated from high-carbon steel wires that protrude through a flexible circular belt. The belt, in turn, is attached to a rotating hub, which is powered by an electric or pneumatically driven spindle. The tool is lightweight, portable, and easily implemented by workers without the need for elaborate set-up or sophisticated safety apparatus. Applications Bristle blasting is most frequently used for removal of unwanted films and layers of corrosion that can form on metallic surfaces. Common applications include cleaning, preparation, and refurbishment of iron and steel components that are used for fabricating bridges, ships, and pipeline systems. See also Abrasive blasting Shot peening Wire brush Needlegun scaler References Abrasives Industrial processes Cleaning methods