Dry Ice Blasting
- Energy Transfer (Dry Ice Pellet Kinetic Energy)
Using Pressure to fire Dry Ice Pellets out of the nozzle and hit the substrate (surface) to knock the contaminants off. Dry Ice is ‘soft’ so no abrasion occurs. This is the first means of cleaning.
- Temperature (Thermal Shock Effect)
The extreme cold of the dry ice pellets (-79 degrees) hitting the surface creates a micro thermal shock between the surface and the contaminant. This creates stresses, shrinking and cracking of the contaminant further dislodging them from the substrate. This extreme cold also sanitizes a surface which is valuable in food processing.
- Gas Pressure (Sublimates)
The third means of cleaning is the sublimation. As the dry ice pellet impacts with the surface, it expands and converts to a harmless gas, expanding 500 times beneath the contaminant. The ‘explosion’ blasts off the contaminant which typically falls to the floor. As the dry ice disappears back into the atmosphere only the dislodged contaminant needs to be disposed of.