Astro Anodising, is the division in the Group specialising in the surface finishing of aluminium sections of up to 3.350m lengths. We offer a variety of colours in matt and bright finishes. We can also accommodate up to 7.500m lengths in natural finish. Our services include:
What is Aluminium Anodising?
Anodising is an electro-chemical process used to increase the thickness and density, of the surface of metal parts.
Anodising is of no use on carbon steel because rust puffs up and flakes off, constantly exposing new metal to corrosion. With aluminium however, anodising will increase its corrosion resistance.
Anodising is also used for a number of cosmetic effects, either with thick porous coatings that can absorb dyes or with thin transparent coatings that add interference effects to reflected light. Anodising changes the microscopic texture of the surface and can change the crystal structure of the metal near the surface. Coatings are often porous and thick, so a sealing process is most often used to improve corrosion resistance.
The process derives its name from the fact that the part to be treated forms the anode portion of an electrical circuit in this electrolytic process. Anodising is generally much stronger and more adherent than most paints and plating, making the aluminium less likely to crack and peel.
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Weoffer anodising up to7.500metres in natural, bronze or black finish. Thickness specifications: 15 or 25 µm.
Anodising willnotpeelor flake becauseit is actuallypart ofthe metal. Thesurface is hardenedand protected, unaffected by sunlight and virtually fade resistant,ensuring extended product life. Natural Anodisingis agreatpre-treatmentforpaint orpowder coatedfinishes and is highly recommendedfor coastal applications due to its superior corrosion resistance.
For a durable, cost effective and environmentally friendly surface treatment, anodising is the way to go.
Everything froma metrelength to 3.350 metres canbe offeredin variouscolours in either a mattor bright finish. Mechanicalpolishing and brushingon various extrusions are just some of the variouspre-treatmentoptionsonecanselect from.
Full size sheets (3000*1500) are alsoavailable in anatural finish.Smallersizes available in various colours.
Our standard colour rangeisasfollows:
Bronze (double dip Process)
Here we specialise in the anodising of various aluminium components. Purpose designed titanium jigs are utilised to limit the contact marks. Job specific jigs can be manufactured for volume based work.
We offer a wide range of colours in a matt or bright finish.