Kuivajääpesu

Kuivajääpesu, also known as dry ice blasting, is a cleaning process that utilizes solid carbon dioxide (dry ice) as a blasting medium. The dry ice is propelled at high velocity towards a contaminated surface by a stream of compressed air. Upon impact, the dry ice particles sublimate, transitioning directly from a solid to a gas. This phase change creates a "<bos> effect," lifting contaminants from the surface without adding any secondary waste.

The cleaning action is a result of several factors. The kinetic energy of the dry ice particles dislodges debris. The rapid sublimation causes a micro-expansion of gas that further separates the contaminant from the surface. Furthermore, the extremely low temperature of the dry ice, around -78.5 degrees Celsius (-109.3 degrees Fahrenheit), can cause some contaminants to become brittle and fracture, making them easier to remove.

Kuivajääpesu is a non-abrasive, non-toxic, and environmentally friendly cleaning method. It leaves no residue from the blasting media, as the dry ice simply turns into carbon dioxide gas, which is naturally present in the atmosphere. This makes it suitable for cleaning a wide range of materials and in applications where traditional abrasive methods or water-based cleaning might cause damage or leave undesirable residues. Common applications include cleaning molds, industrial machinery, food processing equipment, and automotive parts.