CHG International Limited
Your Trusted Partner in the Metal Surface Treatment Industry
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2. Spray cleaner can clean up foreign matter adhering to workpiece surface, and make a close and even phosphorization film on the surface. In order to improve the adhesion between shell surface and film coating, before powder coating, shell surface will be clean, have corrosion resistance.
3. Our equipment, which is based on advanced technology, is designed according to user's actual situation.
4. Each section is composed of spray booth shell and spray system, and has a reservoir. In addition, there may be heating device by user's situation.
| Degreasing | In this step, a cleaning solution is sprayed onto the surface of the workpiece to remove any grease, oil, or contaminants that may be present. Degreasing is essential to ensure proper coating adhesion. |
| Phosphating | Phosphating is a chemical pretreatment process where a phosphate solution is sprayed onto the workpiece's surface. It creates a thin, adherent phosphate coating that improves the coating's adhesion and corrosion resistance. |
| Rinsing | After each pretreatment stage, the workpiece is typically rinsed with water to remove any remaining cleaning or pretreatment chemicals. |
| Surface Conditioning | Some pretreatment systems may include a surface conditioning step, where the workpiece is exposed to abrasive media to create a roughened surface. This helps improve coating adhesion, especially for certain materials. |
| Drying | Before the actual coating process, the workpiece is often dried to ensure a clean and moisture-free surface, which is vital for a successful coating application. |
