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Coastal air contains a high concentration of salt particles and moisture. These tiny salt particles settle on metal surfaces and form an electrolyte solution when combined with water, accelerating the oxidation of steel. Standard paint layers are often insufficient to withstand long-term exposure to salt air, leading to bubbling, peeling, or rust in just a few months.
Common coating methods include spray painting, electrophoretic coating, and powder coating.
l Spray painting is cost-effective and easy to repair but produces a thin layer with limited abrasion and corrosion resistance.
l Electrophoretic coating offers uniform coverage and is suitable for thin sheet metal, but the process is expensive and complex.
l Powder coating forms a thick, dense, and pore-free layer that provides superior anti-corrosion performance, making it ideal for machinery exposed to coastal environments.
For outdoor machinery that is frequently exposed to wind, rain, and humidity, powder coating ensures a more durable protective layer than traditional spray paint.
BES employs a high-standard powder coating process designed for maximum corrosion protection:
l Acid pickling and de-rusting – removes rust and surface impurities, preparing the metal for coating.
l Phosphating treatment – forms a dense phosphate layer on the metal surface to improve adhesion and corrosion resistance.
l Electrostatic powder coating – charged powder is evenly applied to the metal surface and cured at high temperature, forming a hard, smooth protective layer.
l Enhanced coverage on weld seams, edges, and corners – these areas are prone to water accumulation and corrosion, so BES applies extra coating to prevent early rust.
This complete process ensures uniform thickness, strong adhesion, and a pore-free surface, significantly improving the machine’s resistance to salt air corrosion.
1. Superior Salt Air Resistance
The thick, dense coating effectively blocks moisture and salt from reaching the steel, preventing rust even in harsh coastal environments.
2. Environmentally Friendly and VOC-Free
The powder coating contains no volatile organic compounds (VOC), meeting strict international environmental regulations, which is a key concern for many overseas clients.
3. Long Service Life and Low Maintenance
The coating’s hardness and adhesion make it resistant to chipping, scratching, and peeling. One application provides years of protection, reducing maintenance costs.
4. Enhanced Appearance
Powder coating produces a smooth, even, and glossy finish, giving machinery a high-quality, premium look that reinforces customers’ confidence in the product.
BES powder coating is widely applied to external panels, excavator arms, booms, chassis frames, and small components. Particularly, mechanical arms and weld areas receive extra coating for improved anti-corrosion performance. Small parts, such as bolts, pins, and connectors, also receive anti-rust treatment to prevent internal corrosion from affecting overall performance.
For machinery operating in coastal environments, rust protection is crucial not only for appearance but also for safety and longevity. BES’s powder coating process provides a robust protective barrier, ensuring that salt, moisture, and wind cannot easily damage your equipment.