Aluminium extrusion is a process used to create specific profiles of aluminium in desired lengths. The process is relatively simple; the die remains fixed, and the aluminium billet is pushed through the die using a moving ram.

The extrusion process is used to produce a range of solid rods, bars, and hollow tubes. The die's structure can be altered to manufacture various hollow and solid profiles.

The melting point of aluminium is around 660°C, and extrusion typically occurs with billets heated to temperatures over 375°C, and sometimes as high as 500°C, depending on the alloy.

Aluminium extrusion is commonly used in construction, automotive and aircraft manufacturing, industrial machinery, and consumer goods. Extruded shapes can be divided into three main categories: solid, without any voids or openings; hollow, with one or more voids; and semi-hollow, with a partially enclosed void.

When metals are exposed to specific conditions such as air and humidity, a metal-oxide layer is formed on the exposed surface. This layer is inert, which means it no longer reacts with the conditions in the same way the pure metal does.

Similarly, when aluminium comes into contact with moisture or air, it naturally forms a layer of oxide. This oxide layer is not excessively porous or flaky, and it serves as protection by preventing further oxidation of the aluminium.

Powder coating aluminium extrusions offers a multitude of benefits. Firstly, it provides a wide array of vivid, vibrant color choices. The coating is applied in a thick layer that adheres well to the aluminum, minimizing the risk of flaking or peeling. The finish can last up to 20 years, thanks to its resistance to chemicals, weather, and corrosion.

Powder coating is highly efficient, with minimal waste produced during the application process due to the use of electromagnetic energy. It is also an environmentally friendly option, as it does not contain harmful solvents. Additionally, it is a cost-effective solution that offers durability, high-quality finish, and low maintenance requirements.