The cleaning process uses a combination of three phenomena.
1) KINETIC ENERGY
The impact velocity of dry ice pellets on a contaminated surface can exceed even the speed of sound.
2) THERMAL SHOCK
Contaminated layers become brittle after rapid cooling caused by the dry ice at -79 °C.
After contact with the contaminated surface, the pellets change their physical state and become a gas (sublimation), passing through the contaminants. Due to the rapid expansion caused by the change to a gas, contaminants are forced off the surface without damaging the surface
Dry ice cleaning
Cleaning – dry ice blasting is a modern industrial cleaning method
The cleaning process applies three basic phenomena: kinetic energy, thermal shock, and sublimation. The process only removes contaminants, and no secondary waste is created.
Dry ice blasting is a cleaning method which is effective, harmless to the cleaned materials and environmentally friendly.
Dry ice lets you gently and ecologically clean deposits and contaminants without needing to dismantle any of your equipment. You therefore save time and money
Dry ice is known to inhibit the growth of bacteria.
The dry ice cleaning process also stops the growth of fungi and spores and reduces the presence of other biological contaminants. It is non-toxic, odourless and suitable for any hard surfaces – metal, wood and concrete, even on fine wood grains, glass or textiles.
What is dry ice?
Dry ice is the solid state of carbon dioxide (CO₂) formed at a temperature of -79 °C.
Carbon dioxide is naturally found as a gas on Earth. It is non-toxic and odourless, and often used to saturate drinks to give them a fresh sparkling taste. Dry ice is also used in the food industry to cool food and frequently used in health service activities.