The Density of Powder Coating on Aluminium Extrusions

The density of powder coating on aluminium extrusions can vary depending on several factors including the type of powder used, the application method, and the desired finish. Typically, powder coatings for aluminium extrusions have a density range of approximately 1.2 to 1.8 grams per cubic centimeter (g/cm³).

1. Low Density Coatings

Some powder coatings are formulated to be lightweight, offering a density closer to 1.2 g/cm³. These coatings are often used when weight is a concern or when a thinner coating layer is desired.

2. Standard Density Coatings

Most conventional powder coatings for aluminium extrusions fall within the density range of 1.4 to 1.6 g/cm³. This range provides a good balance between coating thickness, durability, and ease of application.

3. High Density Coatings

In certain applications where enhanced durability or specific performance characteristics are required, powder coatings with densities around 1.8 g/cm³ or higher might be used. These coatings typically provide thicker layers and stronger adherence to the substrate.

It’s important to note that the actual thickness of the powder coating layer on an aluminium extrusion can vary depending on the specific requirements of the application, which might influence the overall density as well.

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