Coldry blasting is an advanced cleaning process using solid Co₂ (dry ice) pellets. It is primarily used for industrial use in many applications. Coldry blasting machines or Coldry blasters use compressed air to accelerate Coldry pellets to a high velocity and blast them on the surface for treatment.

When the pellets impact on a substrate having a thick and tightly bonded layer of surface contamination, or unwanted contaminants, the Coldry creates a layer between the substrate and the surface layer. When the solid Coldry sublimes into vapour it expands rapidly and removes the contaminants, ensuring an abrasion free cleaning. At the same time, it does not leave any residue, hazardous waste or toxic fumes.

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