What is Coldry Blasting (CDB)?

              Coldry cleaning is a revolutionary cleaning process using solid CO₂ (also known as Coldry or dry ice) pellets. It is primarily used for industrial use, in many applications. Coldry cleaning machines use compressed air to accelerate Coldry pellets to a high velocity, and propel them on the surface to be cleaned. When the pellets impact a surface having a thick and tightly bonded layer of surface contamination, the Coldry creates a layer between the surface and the surface contamination. When the solid Coldry sublimes into vapour it expands rapidly and lifts off the contaminants, ensuring non-abrasive cleaning.

              At the same time, it does not leave any residue, hazardous waste or toxic fumes. So the process is environment friendly and provides a fast and effective alternative to traditional methods of industrial cleaning. It is quickly becoming favored for environmental, hygienic as well as productivity reasons.

The Cleaning Effect of Coldry

1. Kinetic Effect: When Coldry pellets are accelerated in a jet of compressed air and strike a surface at the speed of sound, they crack and loosen the coating on the surface being treated.

2. Thermal Effect: Coldry penetrates and generates a sudden temperature decrease (thermal shock) on both the contaminant and the substrate. The different materials contract unequally so the adherence between them is broken. The contaminant layer cracks even more and begins to loosen from the substrate.

3. . Sublimation Effect: Coldry penetrates the coating and immediately sublimes (passes direct from solid to vapour state). This results in a 700-fold increase in volume, an explosive effect that lifts the coating off the surface.

4. The gas dissipates, leaving the treated surface CLEAN, INTACT AND DRY.

How Does The Blaster Machine Work?