Aluminium Anodising from the Honeyglen Anodising

Aluminium Anodising from the UK Anodisers, Honeyglen Anodising

What is Anodising? - Anodising is an electrochemical process which artificially increases the thickness of the natural, transparent oxide layer, which is an integrated part of the aluminium surface. In this process the aluminium profile is placed in an electrolyte bath. The aluminium acts as the anode in the circuit.

The Anodising Process

1The first step is the pre-treatment with cleaning and making the aluminium profiles ready. The profiles are etched in an alkaline bath for a certain period of time, a bath which is based on sodium hydroxide. Then the profiles are rinsed in order to remove any possible deposits. In connection with the pre-treatment special mechanical or chemical treatments may also be carried out.

2The actual anodising is the second step in the process. Here the profiles are immersed into an electrolyte bath, which is usually based on sulphuric acid. After anodising the microscopic pores in the anodising layer are still open.

The Anodising Process (Ctd)

3The aluminium is now ready for colour anodising, which is the third step in the process. This step is optional. Colour anodising may be done either by immersing aluminium into an organic dye bath or by means of electro bronze. The latter is carried out by immersing the aluminium into a bath with a tin based solution and then applying a DC current.

4The fourth step in the anodising processs is sealing the surface. In order to obtain a fully protected surface the oxide layer must always be sealed. This is done by immersing the aluminium into a bath containing chemical sealant.

Our Anodising Capabilities

Anodising Finishes Maximum Length
Anodising Finishes available in Matt / Etch Natural 5000mm
Polished Chemically Brightened Silver 3200mm
Polished Chemically Brightened Gold 3200mm
Polished Chemically Brightened Black 3000mm
Pearl Silver 4500mm
Pearl Gold 4000mm
Matt Gold 4000mm
Matt Black 3000mm
Electro Bronze 3000mm