Universal Anodisers are experienced in anodising aluminium sheet and aluminium extrusions for architectural applications.
Anodising is an electro-chemical process used to create a protective film of aluminium oxide on the surface of aluminium profiles or sheet aluminium. As the aluminium oxide film is created from the aluminium itself, it is integral to the aluminium and cannot crack or peel.
Pre-treatment of the aluminium surface before anodising can produce variations in the final appearance of the anodised product. Common finishes are satin or linished (brushed).
A wide range of anodised colours can be obtained through a process known as electrocolouring. When colour anodising is specified, the colour is generated with the use of metal salts during the completion of the anodising process. For permanency of colour, no dyes or pigments are used.
The aluminium oxide surface is the same material as sapphire or carbordundum, and provides a hard, wear-resistant and weather-resistant surface for architectural aluminium products.
Anodised coating thickness can be varied from 10 microns to 25 microns to give the desired level of corrosion resistance and wear resistance.
To maintain the decorative and protective properties of anodising against atmospheric pollutants and grime, a regular cleaning schedule should be specified and adhered to.
The preferred method of cleaning anodised aluminium is with warm soapy water, gently rubbing with a damp cloth or sponge until any grime is removed.
It is important to rinse thoroughly with fresh water to remove any traces of soap or detergent. Acid or alkaline cleaning compounds should be avoided as they may attack the anodic surface. Abrasive cleaners should not be used.