Aluminium is well known for its exceptional durability, even in an unprotected mill finish condition. Aluminium reacts with oxygen in the atmosphere to form an extremely hard oxide which is almost inert, and which inhibits further reaction. Even where the oxide layer becomes scratched the exposed metal simply forms a new oxide layer - the material. The metal is said to be self-repairing.
A coloured coating is normally required to meet the planning requirements and design intent, conform to house colours, or contrast/match other building materials. The specifier is free to choose any powder coated colour and gloss level. Where anodised sheet is required material specification to be 5005 Alloy (J57S) to BS 1470. CSL recommend ANOLOK®* finishes. *ANOLOK is a Registered Trademark owned
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|