Problems with the Application of Metallic and Special Powders: Causes and Solutions
Coating with metallic and special powders requires special attention, as it comes with specific challenges. Common issues such as uneven coating thickness, orange peel effect, or back ionization can impact the final coating quality.
Common Causes of Problems with Metallic and Special Powders
- Uneven powder output: Fluctuations in powder flow can lead to inconsistent coating thickness.
- Orange peel effect: Poor fluidization or incorrect application techniques may cause this defect.
- Back ionization: Complex geometries can lead to back ionization, affecting coating quality.
GEMA Recommendations for Resolution
- Use of PCC mode: The "Precise Current Control" mode enables accurate powder output control and better coating distribution.
- Use of SuperCorona technology: This technology reduces the orange peel effect and improves powder penetration.
- Optimization of application techniques: Adjust gun positioning and movement to minimize back ionization.
- Regular equipment maintenance: Ensure consistent powder delivery through regular cleaning and servicing.
More Information
For detailed instructions and further tips, visit the official GEMA website: GEMA Tips & Tricks – Metallic or Special Powder Applications.
By following these recommendations, you can effectively avoid problems when applying metallic and special powders and sustainably improve your powder coating quality.
