Electrophoretic paint is widely used in industrial production and coating operations due to its excellent performance. However, when it comes to process switching, equipment maintenance, or product reworking, how to clean electrophoretic paint thoroughly becomes a challenge. This not only affects production efficiency but also directly impacts product quality and cost. Today, we'll share some effective methods for cleaning electrophoretic paint.

　　Physical removal is a relatively straightforward and commonly used method. For dried electrophoretic paint attached to equipment surfaces or workpieces, tools like scrapers and sandpaper can be used to chip or sand off the dried paint layer bit by bit. This method can quickly remove most thick paint layers, but care must be taken to avoid damaging the equipment or workpiece surface during operation. For delicate components, ultrasonic cleaning is a good option. By utilizing the cavitation effect generated by ultrasonic waves in a liquid, the electrophoretic paint can be dislodged from the surface, achieving the cleaning purpose. During operation, place the component in an ultrasonic cleaning machine filled with cleaning solution and set the appropriate frequency and duration to see the electrophoretic paint gradually come off.

　　Chemical dissolution involves using specific chemical solvents to dissolve electrophoretic paint. Different electrophoretic paints have varying compositions, so it's important to choose a solvent that matches. For example, for electrophoretic paint with epoxy resin as the main film-forming substance, organic solvents containing strong polar groups, such as dimethylformamide and dimethylacetamide, can be used. Apply the solvent to the electrophoretic paint surface, allowing it to fully infiltrate and dissolve the paint layer, then rinse with clean water. When using chemical solvents, it's crucial to take proper safety precautions, such as wearing gloves and goggles, to prevent skin and eye irritation.

　　High-temperature baking removal is an effective method for stubborn electrophoretic paint. Electrophoretic paint decomposes and carbonizes under high temperatures. Place the equipment or workpiece with electrophoretic paint in a high-temperature oven, set the appropriate temperature and time, and allow the electrophoretic paint to gradually decompose in the high-temperature environment. After baking, use physical removal methods to clean up the residual paint slag. However, be sure to control the temperature and time to avoid thermal damage to the equipment or workpiece.

　　There are also many specialized cleaning agents on the market designed specifically for cleaning electrophoretic paint. These cleaning agents are highly targeted, effective, and have low corrosion to equipment. Dilute the cleaning agent with water according to the instructions, and then use it to clean the electrophoretic paint. During cleaning, tools like brushes or spray guns can be used to assist in improving the cleaning effect.

　　In practice, you can choose the appropriate method based on the specific situation or combine multiple methods. For example, for electrophoretic paint that is firmly attached and thick, you can first use high-temperature baking to partially decompose it, then use chemical solvents or specialized cleaning agents for deep cleaning, and finally use physical removal to get rid of any remaining paint slag.

　　Cleaning electrophoretic paint thoroughly requires mastering the right methods and techniques. We hope these methods will help you handle electrophoretic paint cleaning issues more efficiently, improve production efficiency, and ensure product quality. During operation, always prioritize safety and take proper precautions to avoid accidents caused by improper handling.