Waterjet cleaning uses a stream of supersonic water at pressures between 30,000 to 60,000 PSI (207–414 MPa) to quickly remove difficult coatings and debris from a material substrate. Waterjet cleaning is different than conventional cleaning processes in that it uses much higher water pressures which require unique pump, hydraulic and control systems. Very hard coatings are essentially eroded from the substrate by the high pressure water droplets, while brittle coatings are fractured and spalled.
Waterjet cleaning systems are used to remove many coatings, including:
- felt metal
- resin composites
- thermal spray coatings (including ceramics, metallics, abradables, and cermets)
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