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What is dry ice and where do you get it?

Dry ice is frozen, solidified carbon dioxide (CO2) with a temperature of -78.5 °C. Carbon dioxide in its gaseous state is a normal component of our atmosphere. It is therefore extracted from the air and converted from liquid form to pellet form using a special process. Commercially available dry ice pellets can be obtained from specialised suppliers. It can normally be stored for several days in special thermo boxes.

How do dry ice blasting machines work?

In principle, dry ice blasting units work in a similar way to sand blasting units. However, dry ice pellets are used as the blasting medium instead. These are accelerated to an extremely high speed with a jet of compressed air and blasted onto the surface to be cleaned using a blasting hose with a gun and nozzle. The resulting mini-explosions and cold shock (-78.5 °C) loosen dirt particles from the substrate.

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Advantages of dry ice cleaning

When the surface to be cleaned is impacted, the pellets dissolve and return to their original gaseous state. Neither moisture nor blasting agent residues are produced in the process.

The process is also very effective and suitable for sensitive surfaces. The mini-explosions generated on impact gently detach the unwanted substance from the substrate. The material is not roughened (non-abrasive) or damaged in the process.

Dry ice is also non-conductive, which is why live components can also be cleaned (e.g. switch cabinets). Furthermore, the process is very environmentally friendly: no abrasive residues remain and no chemical additives are necessary. Dry ice is non-toxic, non-flammable, tasteless, odourless and bacteriological.

Popular applications

  • Vehicle industry - vehicle preparation: interior cleaning including ventilation systems, engine cleaning, upholstery cleaning, convertible top cleaning and many more.
  • Mould cleaning: Mould cleaning in the automotive, plastics and aircraft industries as well as foundries or the sporting goods and food industries
  • Electrical cleaning: switch cabinets, electric motors, fans, generators, printed circuit boards, conveyor belts, printing machines, welding robots, automatic soldering machines
  • Restoration: fire damage restoration, mould abatement, wood restoration