Aluminum Alloy Door Handles---Anodizing or Powder Coating?

Why don't BOGO's aluminum Door Handles come powder coating? Powder coating can indeed be applied to alumnum. However, it is worth noting that the sealed surface of aluminum reduces the adhesion properties of powder coating, which can lead to flaking over time.

Powder coating and anodizing are two common surface treatments used to enhance performance, durability, corrosion resistance and visual appeal. However, what is the difference between the two and how do you choose the right one for a specific application?

This article will explore the differences between the two, the surface treatments, guiding you in selecting the one that best suits your project.

Powder coating involves applying a positively charged powder to a grounded object using a method whereby the coated is then heated to melt and flow, creating a resilient and smooth layer called an organic finish. The resulting powder coating is highly durable, with excellent corrosion resistance and ultraviolet protection.

Advantages of powder coating:
1. enhances the corrosion resistance of aluminum parts.
2. changes the appearance of raw materials which often have a dull appearance.
3. provides protection against abrasion for aluminum parts.
4. Hides staining marks from the grinding process and ensures a smooth, even surface.
5.an economical coating method that is both durable and cost-effective.

Anodizing is an electrochemical process used to produce a protective oxide coating on a metal surface. Anodizing is distinguished from other surface treatments by its unique method of utilizing existing materials for coating rather than introducing new ones. This feature ensures that the anodized coating will not flake or peel, resulting in an extremely durable metal surface.It is important to note that anodizing is primarily limited to aluminum substrates.

Advantages of anodizing:

1.Enhances the wear and corrosion resistance of machined parts, thereby extending their service life.

2.Enhances the non-conductive properties of machined parts.

3.The oxide film formed through anodizing is typically stronger than powder coating, providing strong protection against varying weather conditions.

4.Anodized parts are often easy to maintain and clean.

5.Excellent resistance to UV-induced damage and degradation.

6.Because of its high resistance to contact and abuse, it is suitable for products that are frequently used by the public, such as doors.

Anodizing creates a long-lasting and permanent protective layer on metal surfaces, preventing fading or damage caused by external factors such as heat, sunlight and moisture.In general, anodizing is primarily applied to aluminum substrates.

In contrast, powder coatings are relatively more susceptible to damage from external weather conditions and may crack or flake over time when exposed to moisture, sunlight or humidity.

Typically, anodizing is more costly than powder coating, influenced by factors such as the size and complexity of the part, the equipment used, the materials used, and the overall size of the process.