Capalex Aluminium Extrusions
Aluminium Extrusions
Capalex Aluminium Extrusions


Anodised aluminium components or profiles can have a 'natural' or 'colour' finish.

Anodising is an electro-chemical process, which physically alters the surface of the metal to produce a tough oxide layer on the surface.
Anodising can provide an attractive, durable and tough finish to aluminium, enabling it to be used in many applications.

Anodic Film Thickness

Anodising can have a varied processing time, which varies the thickness:

5 Micron
Decorative applications
10 Micron
Internal / external applications, for example caravan trims and windows where cleaning is frequent.
15 Micron
25 Micron
External permanent architectural applications
25 Micron plus
Achieved by hard anodising. Used to provide abrasion resistant surfaces.

Anodising as an electrochemical process produces a protective aluminium oxide film, not all alloys are recommended for anodising.
The anodising process physically alters the surface of the metal, and also provides a means of colouring the metal.
During the process the oxide layer is at first porous, and it is at this point that its possible to add a coloured dye.

Anodising will give a high quality finish plus producing a finished product that will have excellent corrosive resistance and will not chip or peel off. Aluminium that has been anodised generally has a very long life span.

Normal anodising colours and finishes include gold, silver, black, natural, and satin. Other colours can be supplied.

Extrusions, or components can also be polished before anodising to give a bright reflective coating that has a long life.

Other Aluminium Surface treatments include anodising, or polishing and then anodising. The metal can be coloured first to give an atractive finish
An Aluminium Electronic Box, made from 4 seperate parts, machined, anodised black, and screen printed.