CHG International Limited
Your Trusted Partner in the Metal Surface Treatment Industry
Add to Cart
Spray Cleaner for Powder Coating Production Line Customizable Surface Treatment Equipment
Spray Pretreatment Overview
Spray pretreatment plays a vital role in the coating process, involving detailed surface preparation of workpieces before powder coating. This step ensures that surfaces are meticulously cleaned and readied for coating, enhancing both adhesion and the durability of the final finish.
Key Processes in Spray Pretreatment
- Surface Preparation: Before applying any coatings, spray cleaners are employed to treat the workpiece surface. This treatment removes contaminants and prepares the surface for subsequent processes.
- Enhanced Adhesion and Protection: The spray cleaner not only cleans but also facilitates the formation of a tightly bonded and uniform phosphatization layer on the surface. This preparation is critical for achieving strong adhesion between the shell surface and the coating, ensuring the coated surface is clean and resistant to corrosion prior to powder coating.
- Customized Equipment Design: Our systems leverage advanced technology and are customized based on the specific needs and circumstances of each user, ensuring optimal performance and efficiency.
- System Components: Each section of our equipment includes a spray booth and spray system, along with a reservoir. Depending on user requirements, an optional heating device may also be included to enhance functionality.
Specific Pretreatment Steps
| Degreasing | A cleaning solution is applied to remove grease, oils, and other contaminants from the workpiece surface, which is fundamental for achieving proper adhesion of the coating. |
| Phosphating | This chemical pretreatment involves spraying a phosphate solution onto the workpiece to form a thin, adherent layer that boosts adhesion and resistance to corrosion. |
| Rinsing | Water rinses are conducted after each pretreatment phase to clear away any remaining chemicals, ensuring a clean surface for the next step. |
| Surface Conditioning | Some systems feature a conditioning step where abrasive media is used to texture the surface, improving adhesion particularly for certain materials. |
| Drying | To prepare for coating, workpieces are dried to eliminate moisture, which is essential for achieving a successful and durable coating application. |
