There are various metal surface treatment processes, including polishing and grinding, sandblasting, anodizing, electroplating, spraying and passivation, each with unique advantages and limitations. Many enterprises choose processes blindly without considering workpiece materials, service environments and functional requirements, resulting in insufficient corrosion resistance, inconsistent appearance, cost waste and unqualified products. Comparing mainstream processes and selecting solutions according to actual needs is the key to improving product quality and controlling production costs.

Many factories face a common dilemma: metal workpieces with qualified base materials and standard processing procedures still suffer from frequent rusting, wear, oxidation and peeling after put into service, resulting in greatly shortened service life. In fact, the poor durability of most metal products stems not from defective base materials, but from substandard metal surface treatment processes. Serving as a protective barrier for metal workpieces, surface treatment directly determines the durability and service life of finished products.

Driven by upgraded industrial standards, customized coating for hardware, metal and plastic composite parts has become mainstream. It is an all-in-one surface treatment solution for chassis shells, fasteners and home appliance parts, integrating anti-corrosion, wear resistance and personalized coloring for indoor and outdoor industrial scenarios.

What are the Differences Between Electrostatic Coating and Ordinary Spraying? Which is Better?

Ordinary spraying relies only on air pressure to attach paint mist to workpieces. It can hardly cover dead corners and grooves, leading to uneven coating. Electrostatic coating adopts electrostatic attraction: charged paint mist actively wraps and adheres to grounded workpieces, realizing full coverage without missing spots.

Coating peeling and flaking are common defects for sprayed metal and plastic workpieces, which damage appearance and weaken anti-corrosion performance. Most peeling problems stem from non-standard processing instead of defective coatings, including pretreatment, spraying and curing errors. Targeted solutions can effectively avoid repeated quality failures.

Conventional spraying often causes missing coating, peeling and scratching on hardware and plastic workpieces. As a mature surface coloring technology, electrostatic spraying relies on electrostatic adsorption to realize full-coverage coloring. With standardized pretreatment, it delivers far stronger coating adhesion and durable performance, widely used in mass processing of home appliance parts, chassis shells and plastic structural components.