THE TECHNOLOGY

The technological starting-point of the ICE CLEAN process is the use of dry ice blasting, for industrial applications.

A number of innovative modifications and the addition of several components to the standard machine has made it possible to extend the use of ICE CLEAN technology, now patented by the Sapio Group, to the field of historic buildings, art, architecture and archaeology.

Cryoblasting is a cleaning technique consisting in the high-speed projection of very small solid-state carbon dioxide pellet: in its solid form, CO2 is commonly known as dry ice. It is produced by means of an expansion - i.e. pressure reduction - process, applied to liquid state carbon dioxide. This process produces "dry ice snow", which, when compressed mechanically, becomes dry ice in the form of little blocks or pellet.
 
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