Paint vs. Powder Coil Coating: Which Is Better?

 There are many questions in the powder coating vs. paint debate. How durable are powder coatings? Is powder coating better than paint? The answer can be boiled down to which of the two processes best meets the following criteria in coating lines.

1. Cost-effectiveness of paints and powder coatings

When considering economic factors, the main benefit of the powder coating process is its efficiency. With a typical transfer efficiency of 60-70%, approximately two-thirds of the powder used for a given application will achieve its intended purpose. In contrast, coatings have a transfer efficiency of only 30-35%, thus wasting two-thirds of the coating used for a given application.
Even if you take the remaining volume into account, the powder application does not lose everything. Once the powder coating is complete, the percentage of powder that falls to one side can be collected and reused in the next cycle. Spray painting is not possible with this form of protection, and if it fails to reach the target the first time, it will spread into the thin air.

 

2. Safety of paints and powder coatings

Powder coating is a safer process than spraying because the active product - the polymer powder - is inert and therefore free of toxins. In contrast, paints typically contain toxic solvents and volatile organic compounds that can be harmful if inhaled.
While it is true that protective equipment needs to be worn when applying powder coatings, the process itself is typically cleaner and free of health-related risks. That said, it is critical to prevent powder from coming into contact with skin, but this is easily accomplished because the process produces a small amount of overspray.

3. Environmental friendliness of powder coatings and painting

The environmental benefits of powders extend far beyond the application process itself. Since powder polymers do not contain toxins or volatile organic compounds, the unused portion does not emit greenhouse gases, whether used or not. Since most of the given powder supply is eventually put to use, it is also easy to select on landfills. Conversely, each time a paint is sprayed, toxins are emitted into the atmosphere.

 

 

4. Mechanical Convenience of Powder Coatings vs. Paints

From a mechanical standpoint, powder coatings offer a greater degree of strength and flexibility than painted finishes. For the uninitiated, powder finishes are stronger in thickness and more difficult to crack or peel. Powder finishes are also easier to bend, which makes powder a better choice for items that change shape and for any item with moving parts.
The flexibility of powder coating makes powder ideal for transporting equipment that is subject to constant motion and vibration. Powder coated finishes also exhibit greater resilience in the face of pebbles, flying debris and other hazards kicked up by the tires of moving vehicles.

5. Productivity of Powder Coatings and Paints

Powder coatings also help speed up the production process because of the short time it takes for the powder polymer to cure on the surface. Unlike paints, which can take several days to fully dry, powders will fully cure in 20 minutes or less. Even before cooling in the oven, the powder-coated part is eventually ready for use.
Because of the durability and streak-free quality of powder coatings, the process involved in powder application is now considered a necessary skill in production plants, and the process is often taught to employees.

 

 

6. Reliability of Painting and Powder Coatings

When it comes to metal surfaces, the purpose of paint or powder finishes is twofold. On the one hand, the coating is intended to provide aesthetic appeal, especially if the surface is part of a commercial product, such as a household appliance or an automobile. More important, however, are the protective qualities of paint and powder finishes, which protect metal surfaces from the corrosive effects of environmental elements.
If exposed to water or moisture, metal will rust in spots. In the areas where rusting is most concentrated, holes can form in the metal surface. A solid layer of paint or powder can prevent these corrosive effects from taking root on the metal surface, provided the surface remains intact. Because powder finishes are stronger and more durable than paint coatings, powders often guarantee superior, longer-lasting protection for the surface of metal body products.

 

LITONG is a successful practice of breaking through traditional processing industry and striding forward to the high-tech professional manufacturing industry. It is an enterprise specialized in designing and manufacturing Environmental Protection Production Line, Aluminum Composite Panel Laminating Line (ACPL), Aluminum Color Coating Line (ACCL), Steel Color Coating Line (SCCL), Continuous Aluminum Anodizing Color Coating Line and so on.  

 

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