Hydroblasting, i.e. the technology of hydrodynamic cleaning incorporates the technique of spraying the cleaning surface with high-pressurised water (up to 3000 bar).
Water under such pressure removes contamination such as rust, welding slag, varnish, as well as other deposits adhered to cleaned surface.
The technology in question is useful in cleaning steel and ceramic surfaces.
See also:
Hydrodynamic cleaning and flushing of lubrication systems
Hydrodynamic cleaning of surface condensers in steam turbines and other heat exchangers
Hydrodynamic cleaning of ROPP/ROSS rotary air/fume heaters
Hydrodynamic cleaning of surfaces and technological systems, anti-corrosion protection
Cleaning of concrete and asphalt surfaces