Dry ice is a multifaceted cooling agent that does not turn into water, but sublimates into a gaseous state. Its temperature of -78.48°C is close to Antarctic records!
It turns out that due to its amazing physical properties, dry ice in pellet form is an ideal cleaning agent that works well in industry to remove contaminants from sensitive tools and equipment.
The dry ice cleaning process uses granules that strike the selected item, thereby causing a sudden, spot cooling of the coating or dirt you plan to remove. Due to their high kinetic energy, dry ice pellets not only deform and crush – they also create micro-fractures in the dirt layer as they impact the workpiece. The dry ice particles then enter and increase their volume up to 1000 times to separate the unwanted layer from the selected surface.
The medium used throughout the procedure changes to a gaseous state. Unlike most traditional techniques, dry ice cleaning is not an abrasive process. No scratches or wear appear on the surface.
What makes customers more and more willing to opt for dry ice cleaning?
Dry ice cleaning allows for simultaneous application in several objects with different geometries, therefore the technology is most often used to remove contaminants from plastic and rubber molds. It is also great for degreasing surfaces, which is why it is successfully used in the food, wood and paper industries. It can also be used to remove paint or corrosion.
In order for dry ice to retain its valuable properties, it must be stored properly. The best protection is an insulated container:
The thick insulation helps slow the rate of dry ice (CO2) sublimation that leads to expansion or rupture of the container. Be sure to keep the container in a well-ventilated area.
The dry ice temperature is -78.5oC.