Anodised vs powder coated — which aluminium finish?

Both finishes are durable; the choice is mostly aesthetic. Anodising grows a 15-25 micron hard aluminium oxide layer into the metal itself, giving a satin metallic look in champagne, bronze, black or silver. It will never peel, and develops a natural patina over decades — the classic architectural aluminium look. Powder coating applies a 60-80 micron polyester (or PVDF) paint layer and lets you match any RAL/NCS colour, including matte black, anthracite grey, white and custom project colours.

Both carry a 10-year exterior warranty against chalking, fading and adhesion under normal conditions. Powder coating is cheaper and more colour-flexible; anodising is more scratch-resistant and aluminium-authentic. For coastal or high-UV façades we recommend PVDF powder coating over standard polyester.