Powder coating systems

To provide your products with a beautiful powder coating finish, you need a system to charge the powder statically before spraying
The positively charged powder is attracted to the negatively grounded workpiece.
This example uses the Nordicpulver tribo powder coating system

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Static charging of the powder can be done in two ways
Through the corona principle and with the tribo principle

The purpose of both principle operations is static charging of powder.
The difference is the way in which powder is positively charged. is becoming.

The Tribo process works with static friction.
During a Corona process, an electrostatic field with high voltage is generated.

In both cases, powder is statically charged in the tube.
Corona via a high voltage field Tribo via a friction element.
With both principles, the positively charged powder from the gun will be attracted to a negatively grounded workpiece. 

Both operating principles have advantages and disadvantages.
Below you will see the pros and cons and you can determine which principle is most suitable for you.

Corona:
+ Any type and quality of powder can be used.
+ More accurate layer thickness adjustment, which allows for more economical spraying in mass production.

- High voltage, risk of arcing if used incorrectly.
- Less suitable for people with hypersensitivity to tension fields.
- Only suitable for conductive material.
- Risk of powder shedding in sharp inner corners due to Faraday cage effect
-230V with protective earth required
- No separate parts available

Tribo:
+ impervious to the Faraday cage effect. 
+ Tribo powder coating is also safer due to the absence of high voltage.
+ More layer build-up possible than with corona system because the powder is not dependent on built-up static charge build-up.
+ Suitable for poorly/non-conductive materials, such as glass and ceramics.
+ Demountable and spare parts available

- Low quality powders, metallic and structured powders are less easy to statically charge and therefore process.
- Requires more testing and experience than with a corona system.

With this knowledge you can determine for yourself which system is most suitable for your purpose.
If you have additional questions, please take a look at our FAQ page or contact us via our contact page