Dry ice cleaning
is an innovative process for cleaning surfaces in an especially gentle manner – with dry ice pellets as an abrasive. The dry ice pellets are injected into a jet of compressed air, accelerated to speeds in excess of 150 m/s and the fired at the surface to be cleaned. The abrupt cooling of the surface causes a thermal shock and produces fine cracks in the top layer. The dry ice penetrates these cracks, lifts the contaminant from the surface and returns to the atmosphere as CO2 gas leaving only the contaminant behind. Ice blasting uses no chemicals, leaves no waste water, is environmentally friendly and can be used in areas where cleaning with water is prohibited or inconvenient.