• Approved to ISO 9001:2008
  • Latest digital testing equipment including micron thickness, weight loss and admittance
  • Comprehensive process control
  • Full time solution analysis


  • Approved to ISO 14001
  • Winner of Groundwork Trust Award for waste effluent and water recycling
  • State of the Art water recycling/effluent plant
  • Continual monitoring of plant environmental impact


  • Advice on alloy section colours and finishes
  • Quotes in writing - typically the same day
  • Site visit if required
  • Free sample colour swatch


  • Direct contact with senior staff and decision makers
  • Delivery time to suit customer's needs wherever possible
  • Four process plants offering a full range of finishes and colours
  • Delivery by Colour Anodising vans or national carrier

Sulphuric Anodising is an electrochemical process that converts the aluminium surface into a decorative, durable, corrosion-resistant, anodic oxide finish


The anodic oxide structure originates from the aluminium substrate and is composed entirely of aluminium oxide. This aluminium oxide is not applied to the surface like paint or plating, but is fully integrated with the underlying aluminium substrate, so it cannot chip or peel. It has a highly ordered, porous structure that allows for secondary processes such as colouring and sealing.


Anodising is accomplished by immersing the aluminium into an acid electrolyte solution and passing a current through the aluminium. A cathode is mounted to the inside of the anodising tank; the aluminium acts as an anode, so that oxygen ions are released from the electrolyte to combine with the aluminium atoms at the surface of the part being anodised. Anodising is, therefore, a matter of highly controlled oxidation - the enhancement of a naturally occurring phenomenon.


  • Satin Silver, Black, Bronze & Gold up to 6000mm
  • Bright Silver, Gold, Black up to 2400mm
  • A large range of colours in Bright, Bright Etch and Satin finishes.


To see the range of standard colours we offer we have designed the colour swatchbook shown below. Click on the cover to see the range of colours. To see an individual colour click on the relevant blade which will reveal the colour name.
Please call or email to order your free aluminium colour sampler which physically represents the colour swatchbook shown below.


For technical reasons connected with colour reproduction and media limitations, the colours shown may not be exact representations of the finished products

Hard Anodising is the term used to describe the production of anodic coatings with film thickness, corrosion and abrasion resistance as their primary characteristics.

The nominal thickness of coatings applied is 25-50 microns but a controlled thickness can be obtained from just a few microns up to 100 microns depending on the alloy chosen


The wear characteristics of hard anodised aluminium are most favourable at low loads and compare most favourably with hard chromium and high speed steel, in most cases better.

The micro hardness of the coating varies significantly depending on the alloy chosen.

Generally the high strength alloys i.e. 2000 and 7000 alloys produce a micro hardness figure ranging from 250 to 350 micro Vickers and 6000 alloy range 400-500 micro Vickers.

A note of caution should be made when comparing micro hardness to wear resistance, the hardness measured by micron-indentation method does not represent the performance of the material.

It has beenfound that a hard anodised coating measuring 450mv will have a wear resistance of tool steel of 950 mv and even an anodic coating of highcopper alloy such as 2014 measuring 250-280 mv will often offer as much wear resistant as tool steels.


Hard anodic coatings have better abrasion resistance than conventional coatings of the same thickness. Corrosion resistance is further improved by sealing but with some loss in the abrasionresistance (about 20%).


Depending on alloy chosen and film thickness the colour varies from light grey to dark grey.


Due to the fact that the hard anodic film is an integral part of the aluminium, you will find that the adhesion properties are superior to that of any other coating applied to aluminium


Hard anodising will reduce fatigue strength considerably - up to 47%


Hard anodic coatings can withstand short exposures up to 2000 °C. Long exposure to high temperature shows no adverse effect on performance, other than surface crazing


The illustrations below show the different natures of conventional grit and bead blasting compared to Aqua Blasting

The key to aqua blasting is that the finish is produced through the flow of water borne abrasive, giving a finer finish due to the flushing action of the water. No media is impregnated into the component, nor is there any dust created by the break-up of media, unlike dry blasting where the finish is produced by sheer force of media impact.

Aqua blasting provides the perfect pre-anodising finish to aluminium

For us, quality is about meeting or exceeding
the needs and expectations of our customers
Colour Anodising

Quality is about meeting the needs and expectations of customers.


Our statement of quality

Our aims are to:

Achieve and improve customer satisfaction;
Improve and innovate working methods;
Increase efficiency and reduce waste and cost;
Identify and manage risk to the business and
Ensure corporate care and responsibility

We are committed to ensure that the impact of our operation on the environment is reduced to as low a level
as is practically and economically feasible
Colour Anodising

Our ENVIRONMENT POLICY is that we will:

  • regularly review all stages of our operation in order to minimise our impact on the environment;
  • ensure that we comply with the spirit and the letter of national legislation and local regulatory controls, as well as meeting industry standards and operating to relevant codes of practice;
  • endeavour to reduce the amount of waste produced and dispose of such waste in a safe and responsible way, re-using or recycling where applicable;
  • monitor and measure all environmentally significant emissions and discharges to water, air and land to minimise the environmental impact;
  • establish procedures to prevent pollution and conserve energy wherever possible and undertake programmes to continually improve our environmental performance;
  • minimise the environmental impact of any processes by employing the best techniques not entailing excessive cost;
  • promote environmental principles by sharing and exchanging information of environmental importance with regulatory bodies, professional associations, customers, suppliers contractors and employees.
  • establish environmental training needs within the company and maintain training programmes; and
  • develop and maintain an environmental management system, setting objectives and targets, as well as reviewing this policy, on a regular basis.