Anodising and powder coating are common finishing techniques. They are used for materials such as aluminium and have different advantages to suit a multitude of applications. Let’s look at the two processes in more detail and compare their durability.
The difference between anodising and powder coating
Anodising thickens aluminium’s natural oxide layer through an electrochemical process. It creates a corrosion-resistant and highly durable surface that resists peeling, flaking, and chipping. It is environmentally friendly and emits no volatile organic compounds. It also provides a consistent appearance from all angles and allows the underlying metal to remain visible. The downside of anodising is that it is only suitable for aluminium.
Powder coating uses an electrostatic charge to apply an organic coating. A protective layer is then created after curing with heat. It offers flexibility in terms of aesthetics but is more prone to wear, such as scratching and chipping, over time; however, it is still a popular choice due to the ease of application, cost-effectiveness, and visual appeal.
The durability debate
When it comes to durability, the type of anodising offered by companies such as https://www.poeton.co.uk/surface-treatments/anodising/ is the premium option for harsh condition resistance and long-lasting finishing. This is largely because the anodic layer becomes an integral part of a metal rather than being a surface coating that can flake, chip, or peel.
Anodising is also resistant to UV light and fading, making it perfect for outside applications; what’s more, it is low maintenance, only needing cleaning from time to time with a mild detergent and water.