Hammertone Finish Powder Coatings

Thermosetting hammertone finish powder coatings, also known as artistic powder coatings, produce a surface pattern resembling hammered metal. This hammered effect isn't achieved through physical striking but rather through a sophisticated “dance of chemistry and physics.” Its core lies in the addition of two key additives: hammer finish agents and degassing agents. The hammer finish agent is the soul of the pattern formation. It is a substance with extremely low surface tension, typically a modified silicone oil or acrylic polymer. During the heating and curing stage, powder particles melt into a liquid film. The hammering agent floating on the surface reduces the surface tension of the surrounding coating liquid, while other areas maintain higher surface tension. Liquids invariably flow from low-tension to high-tension zones. This “Marangoni effect” drives convective mass transfer within the molten coating, ultimately curing into a hammered pattern with a concave center and raised edges. During curing, the degassing agent facilitates the smooth escape of gases generated during powder melting, preventing pinholes while aiding hammer pattern development.

Hammertone powder coatings not only possess the numerous advantages of standard thermosetting powders but also feature an aesthetically pleasing pattern, smooth coating film, and strong decorative properties. They can compensate for and conceal surface imperfections such as roughness and unevenness on workpieces. These coatings exhibit soft color tones, a flexible yet hard coating film, and excellent durability. Therefore, they are widely used for metal surface coating in fields such as instrumentation, distribution cabinets, security doors, home appliances, furniture, lighting fixtures, and medical equipment. Our textured powder coatings offer a rich selection of color options, combining multi-level gloss with diverse texture effects, and can be customized according to customer requirements.

Detailed Information

Advantages of Hammertone Powder Coatings 

1. Excellent Decorative Quality and Artistic Appeal: Hammered powder coating creates a distinctive hammered texture on the surface, which effectively hides minor defects on the metal, such as scratches and dents, while offering an appealing decorative effect.

2. High Durability: Hammered coatings have excellent corrosion resistance, UV resistance, and aging properties. They can maintain their color and texture over time in harsh environments, making them ideal for both outdoor and industrial applications, especially in high-temperature, humid, and corrosive conditions.

3. Scratch and Wear Resistance: The surface of hammered coatings is relatively hard, providing good resistance to daily wear and scratches. This makes it particularly well-suited for applications requiring a durable and wear-resistant surface, such as on equipment casings.

4. Environmentally Friendly: Hammered powder coatings are solvent-free, meaning they release almost no volatile organic compounds (VOCs) during the application process. This makes them more environmentally friendly compared to traditional liquid coatings and in compliance with modern environmental regulations.

5. Uniform Coatin: Powder coatings can be applied evenly to metal surfaces through electrostatic spraying, ensuring consistent color and surface smoothness while also improving adhesion. This results in a high-quality and uniform finish.

6. High-Temperature Resistance: Hammered powder coatings are highly resistant to high temperatures, making them suitable for applications in high-heat environments such as kitchen appliances, electric stoves, and other heat-exposed equipment.

7. Easy Maintenance: The surface of hammered powder coatings is relatively resistant to dust and contamination, making it easier to clean and maintain over time, helping to preserve the appearance of the coated product.

8. Wide Range of Colors: Hammered powder coatings come in a variety of colors and effects, including metallic sheens, sandblasted textures, and more. This wide range of options allows for customization to meet various design requirements.

Classification and Typical Applications

Package and Storage

25 kgs/box, dry ventilation conditions below 30℃.

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