Powder painting for durable, uniform finishes
There powder painting it's a widely used industrial finishing technology for protecting and decorating metal surfaces. Euroforesi, based in Luzzara, in the province of Reggio Emilia, offers a structured and comprehensive service, supported by dedicated facilities and controlled procedures.
This treatment uses an electrostatic system that allows the very fine-grained thermosetting powder to adhere uniformly to the surface of the piece. The piece is then baked in a kiln, melting and polymerizing the paint, creating a compact and durable coating.
There powder coating It represents an effective solution for improving the durability of metal components and ensuring a uniform finish.
Surface preparation before painting
The quality of the final result depends largely on the proper preparation of the metal substrate. Before proceeding with the application phase, technicians perform a series of preliminary operations aimed at ensuring maximum adhesion of the coating.
The piece is inserted into a pre-treatment tunnel where it undergoes:
- alkaline wash
- phosphating
- rinse with demineralized water
At the end of the cycle, the components are thoroughly dried and prepared for the powder spraying phase. This step is essential to eliminate impurities and ensure a technically suitable surface for subsequent firing.
Application and polymerization
During the application phase, the powder is sprayed electrostatically across the entire surface of the object. The attraction generated by the electrostatic current allows for uniform distribution of the material.
Subsequently, the piece enters dedicated ovens which reach temperatures between 180 and 200 °CIn this phase the powder melts and cross-links, forming a continuous and adherent film. Controlled cooling and final inspection by technicians complete the production cycle. powder coating, ensuring color stability and mechanical resistance.
Powder coating systems
Euroforesi has three specific systems for the management of powder coating, capable of covering different production needs.
Automated systems
Two automated lines are dedicated to processing large quantities of large parts and components. This configuration allows for operational continuity and consistent results.
Manual system
A third manual system is used for small series, metal fences or special color processes that require customized management.
This organization allows us to adapt the production cycle to both serial supplies and specific needs, maintaining quality control and application precision.
Advantages of powder coating
There powder coating offers several technical benefits:
- high mechanical resistance
- good corrosion protection
- uniform and stable finish over time
- wide range of color choices
Thanks to the combination of pre-treatment, electrostatic application and controlled polymerization, the result is a compact coating suitable for multiple industrial sectors.
PAINTING AND POWDER COATING
Frequently Asked Questions
What is powder coating?
It is a surface treatment that uses thermosetting powders applied electrostatically and subsequently polymerized in an oven.
What temperatures are reached in the ovens?
The ovens used reach temperatures between 180 and 200°C to ensure correct melting and cross-linking of the powder.
Is it suitable for large quantities of pieces?
Yes, thanks to automated systems it is possible to manage serial production and large components.
Can it also be applied to small series?
Yes, the manual system allows you to process even small quantities or special colors.
Does powder coating protect against corrosion?
Yes, when combined with proper pre-treatment, it helps improve resistance to corrosion and external agents.
