Ortech India dry ice cleaning, dry ice blasting machines and accessories for a variety of industries and applications.It is a process in which dry ice (solid C02) pellets are propelled at supersonic speed, to impact the surface that is to be cleaned or prepared. The pellets are accelerated by a stream of compressed air in a controlled manner through a blasting machine, just as with other traditional blasting systems (sand, bead, soda, solvent and other blasting). The unique feature of dry ice is its ability to vaporize upon impact leaving no secondary waste.