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What is dry ice blasting?

Dry ice-blasting is a form of abrasive blasting, where dry ice – 3mm pellets is accelerated in a pressurized air stream and directed at a surface in order to clean it.

The method is similar to other forms of abrasive blasting such as sand blasting, plastic bead blasting, or soda blasting. Dry-ice blasting leaves no chemical residue as dry ice sublimates at room temperature.Dry Ice Blast

Method:
Dry-ice blasting involves propelling pellets at extremely high speeds. The actual dry-ice pellets are quite soft, and much less dense than other media used in blasting-cleaning (i.e. sand or plastic pellets). Upon impact, the 3 mm pellets sublimates almost immediately, transferring minimal kinetic energy to the surface on impact and producing minimal abrasion. The sublimation process absorbs a large volume of heat from the surface, producing shear stresses due to thermal shock. This is assumed to improve cleaning as the top layer of dirt or contaminant is expected to transfer more heat than the underlying substrate and flake off more easily. The efficiency and effectiveness of this process depends on the thermal conductivity of the substrate and contaminant. The rapid change in state from solid to gas also causes microscopic shock waves, which are also thought to assist in removing the contaminant.

Features :

  • SAFE ON ANY SURFACE
    • Cleaning with dry ice is simply the safest method for cleaning or preparing a surface for recoating. First, dry ice blasting is completely non-abrasive. This characteristic allows materials such as steel, concrete, plastic, glass, or rubber to be cleaned without causing any damage to the surface. Also, by simply adjusting the air pressure, CO2 cleaning is ideal for surface preparation, by allowing the option of either cleaning a painted surface or stripping the paint completely off of the surface. Secondly, ice blasting is a dry process. Therefore, ice blasting can be used to clean electrical components and it is completely safe around bearings. Furthermore, CO2 blasting is FDA Food Grade Certified and upon contact will kill bacteria, mold, mildew, fungus, etc. Cleaning with CO2 also contributes to moisture reduction which aids in inhibiting the growth of bacteria. Ice blasting meets EPA, FDA, and USDA guidelines and would be ideal for environmental site cleaning situations. Because our media is simply carbon dioxide (what we breathe out), we can blast near products and work while facilities are in operation without worrying about causing contamination.
  • ENVIRONMENTALLY SAFE
    • CO2 blasting is the most environmentally safe method for cleaning or preparing a surface for recoating. Once the dry ice hits a surface, it vaporizes, turns into a gas, and returns back to its natural state in the atmosphere. Therefore, there is no waste to clean up other than whatever material is blasted off. This is very significant, because ice blasting eliminates harmful chemicals, truckloads of hazardous materials, and enormous amounts of media to dispose of, making it a safe environmental site cleaning option. The savings in disposal costs can then be very significant.
  • SAFER THAN OTHER METHODS
    • Non-toxic
    • Non-conductive
    • No harmful emissions
    • Safe for employees
    • Safe for end products
    • Safe for the environment
    • Safe for equipment
    • Carbon Dioxide is safer than toxic or environmentally harmful chemicals
    • No hazardous chemicals will eliminate employee exposure and corporate liability

 

 
 
   
 
Buzwair Dry Ice Services BUZWAIR DRY ICE SERVICES
New Industrial Area, Street 1, Building No. 128, Zone 81
Post address: P.O. Box 319, Doha, Qatar
Phone: +974 4411 4840, Fax: +974 4462 1787, Email: bdis@buzwairgases.com
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