Temperature. Pressure. Sublimation.
Dry ice blasting utilizes solid carbon dioxide (CO2) particles that sublimate on contact, expanding rapidly to remove built-up contaminants while preserving the integrity of your surfaces.
There are three parts to the reaction that occurs during the cleaning process.
Pressure
CO2 particles are shot at the surface with extreme force. The airflow used by Cryotechnic far exceeds most commercial automotive workshop air supplies.
The impact of the CO2 particles hitting the surface is enough to lift basic contaminants. But the softness of the CO2, and experience of Cryotechnic, minimise harm to surfaces or paint.
Temperature
The surface temperature of Dry Ice is -78 degrees Celsius.
Upon impact, the Dry Ice pellets transfer their thermal energy to the surface, causing contaminants to loosen and dislodge.
Sublimation
Sublimation is the process where Dry Ice changes from solid to a gas. When the Dry Ice particles hit under extreme pressure they sublimate rapidly.
This expansion removes the most stubborn contaminants from the surface. Sublimation also eliminates any secondary waste as created with other media blasting techniques.