Why is it called ‘Cold’ Spray?

It is called Cold Spray because rather than being based on melting, the process exploits kinetic energy. The workpiece is heated as a result of the impact of the metal powder particles. The heat generated ranges from 100 ºC (low pressure) to 150 ºC (high pressure).

How does it work?

Metal powder particles are ‘shot’ onto the workpiece at very high speeds of up to 600 metres per second, and bond with its surface structure due to the high velocity impact.

On which materials can it be applied?

On all metals, glass, ceramics and various plastics.

Which metals can be applied?

High Pressure:
⦁ Gold
⦁ Silver
⦁ Aluminium
⦁ Aluminium-Bronze
⦁ White metal
⦁ Copper
⦁ Monel
⦁ Nickel-Chrome
⦁ Nickel
⦁ Niobium
⦁ Stainless steel
⦁ Tin
⦁ Titanium
⦁ Inconel
⦁ Ti-6AI-4V

Low Pressure:
⦁ Aluminium
⦁ Zinc
⦁ Copper
⦁ Tin
⦁ Nickel
⦁ Babbitt
⦁ Gold
⦁ Silver
⦁ Platinum
⦁ Mixtures of the above materials

What are the common applications?

⦁ Applying electrically conductive layers
⦁ Applying anti-corrosion layers
⦁ Repairing of all kinds of machine and automobile parts which have been damaged due to wear and tear

What are the latest developments?

⦁ Using Cold Spray for additive manufacturing (3D printing)
⦁ Electromagnetic shielding applications
⦁ Electrically conductive applications on plastics

Is Cold Spray cheap?

Although the purchase of a machine is an investment, the cost is recovered by extending the service life of machinery and components, and by minimising the use of raw materials (local application of functional coatings).


If you still have any questions, please feel free to contact us