Natural anodising is the uncoloured anodic film which is transparent and shows the appearance of the underlying metal. In the case of architectural anodising this is a standard matt etched finish.

History

The original anodic finish first used in the 1930's and the predominant architectural finish until 1970's. Now back in fashion.

Benefits

In addition to the general anodising benefits (see "anodising") natural anodising is the least expensive anodic finish and is normally cheaper than PPC.