Anodising Services to South African Industry

Our services include:
On carbon steel anodising is of no use 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.
What is Alumium Anodising?
bullet point
Extrusion Anodising
bullet point
Chemical Brightening
bullet point
Component Anodising
bullet point
Architectural Anodising
bullet point
Specialised Jigging
bullet point
Mechanical Polishing
bullet point
Mechanical Brushing
What we Do
Anodising is an electro-chemical process used to increase the thickness and density of the surface of metal parts.
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.
Astro Anodising is the division in the Group offering superior anodising services to manufacturers using aluminium in the production of their end products. These customers are spread over scores of different industries including those in the automotive and architectural sectors. With our large selection of colours and finishes and our capability to anodise work in sizes ranging from small cast or machined components right up to lengths of 7.5m we are truly your "one stop shop".
photo anodised gold tubes
+27 11 452 9748
Astro Anodising
Your Aluminium Finishing Specialist
Architectural Division
Anodising will not peel or flake because it is actually part of the metal. The surface is hardened and protected, unaffected by sunlight and virtually fade resistant, ensuring extended product life.

Natural Anodising is a great pre-treatment for paint or powder coated finishes and is highly recommended for coastal applications due to its superior corrosion resistance.

For a durable, cost effective and eco-friendly surface treatment, anodising is the way to go.
We offer anodising up to 7.500 metres in natural finish or a choice of colours. Specifically; Bronze 541, 542 and 543 as well as Black 549. Thickness specifications:  15 or 25 ┬Ám.
Semi Architectural and Brightening Division
Everything from a metre length to 3.350 metres can be offered in various colours in either a matt or bright finish. Mechanical polishing and brushing on various extrusions are just some of the various pre-treatment options from which one may select.
Full size sheets (3000*1500) are also available in a natural finish. Smaller sizes available in various colours.
Our standard colour range is as follows:
bullet point
Natural
bullet point
Brass
bullet point
Purple
bullet point
Black
bullet point
Red
bullet point
Green
bullet point
Silver
bullet point
Blue
bullet point
Pink
bullet point
Gold
bullet point
Orange
bullet point
Bronze
bullet point
Bronze (541-545)
bullet point
Bronze (double dip Process)
Component Division
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.
Our standard colour range is as follows:
bullet point
Orange
bullet point
Gun Metal Blue
bullet point
Natural
bullet point
Gold
bullet point
Purple
bullet point
Silver
bullet point
Brass
bullet point
Green
bullet point
Red
bullet point
Champagne
bullet point
Pink
bullet point
Blue
bullet point
Black
bullet point
Bronze
PDF icon link to aluminium brochure
Click the icon to view or download our Aluminium Maintenance Brochure in PDF format