Dry ice cleaning is the most environmentally safe method for cleaning or machinery, structures and objects. Its unique ability to sublimate (turn from solid to vapour without going through the liquid state) means that no by product waste is created resulting in minimal mess and no impact on the environment.
This is very significant because dry ice blasting eliminates the use of harmful chemicals, as well as the cost of hazardous waste disposal making it the safest and most cost effective environmental site cleaning option.
Dry ice pellets are fired out of a blasting gun at super high speed. Three processes affect the cleaning:
1. Energy Transfer (Dry Ice Pellet Kinetic Energy)
The pressure at which the pellets have been fired out of the blasting gun hit the substrate (surface) and knock the contaminant off. Dry ice is ‘soft’ so no abrasion occurs. This is the first means of cleaning.
2. 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 it from the substrate. This extreme cold also sanitizes a surface which is very valuable to our food production clients.
3. Gas Pressure (Sublimation)
The third means of cleaning is the sublimation. As the dry ice pellet expands on impact with the surface it warms converting to a harmless gas expanding 500 times beneath the contaminant. This ‘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.
To find out how dry ice cleaning can benefit your business please call 01892 886484 or contact us.