Alufinish

An quick guide to anodising: How a durable Aluminum surface is created

Benedikt Wolter — Mon, 03 Aug 2026 07:18:45 +0000

We encounter anodised aluminium surfaces every day: on façades, vehicle parts, furniture, lighting or technical components. They can be matt or glossy, natural or coloured. But what actually happens during anodising, and why does it require several carefully coordinated process steps? What does anodising mean? Anodising is the common term for the electrolytic oxidation of […]

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ALUMINIUM 2026: Come see us in Düsseldorf – Hall 3, Booth 3F45

Benedikt Wolter — Tue, 28 Jul 2026 16:59:07 +0000

From October 6 to 8, 2026, the international aluminum industry will gather at ALUMINIUM in Düsseldorf, and we’ll be right in the thick of it. You’ll find us in Hall 3 at Booth 3F45: featuring specific topics related to process costs, flexibility, and process reliability in surface treatment, with plenty of space for meaningful discussions, […]

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Green aluminium – a practical step towards cleaner EVs

Benedikt Wolter — Fri, 03 Apr 2026 08:49:05 +0000

The shift to electric vehicles is reshaping the demands placed on materials and supply chains. A new study by Transport & Environment (T&E) highlights aluminium as a key lever – and green aluminium as a viable route to significantly reducing emissions. Aluminium plays a critical role in EV design – from battery housings to chassis […]

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Rising energy costs as a challenge for surface finishing

Benedikt Wolter — Mon, 30 Mar 2026 12:11:54 +0000

In many production environments, energy costs have become one of the most important factors influencing the economic efficiency of industrial processes. Over recent months, energy prices have increased significantly in many regions, creating additional cost pressure for energy-intensive industries. In particular, anodising and coating operations are directly affected by this development, as energy consumption has […]

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Common Error Patterns in Anodising – and How to Prevent Them

Benedikt Wolter — Mon, 19 Jan 2026 11:05:13 +0000

Anodising is one of the most established methods for finishing aluminium surfaces. However, even minor deviations in the process can lead to visible defects and non-saleable surfaces. This article outlines three common error patterns – and how to prevent them reliably. Iridescent Discolouration Due to Contact Faults After anodising, some components show iridescent rainbow colours […]

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Hexavalent chromium restriction: What alternatives are available in surface treatment

Benedikt Wolter — Thu, 16 Oct 2025 13:59:20 +0000

The European Chemicals Agency (ECHA) has proposed a wide-ranging restriction on the use of hexavalent chromium (Cr(VI)) compounds. Known as potent workplace carcinogens, these substances are already subject to REACH authorisation – but could now face a general ban across the EU1. For businesses involved in metal pre-treatment – particularly aluminium – this signals a […]

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Qualanod approval received for two energy-saving pre-treatment systems

Benedikt Wolter — Tue, 01 Jul 2025 11:57:02 +0000

Alufinish is pleased to announce the approval of two innovative pre-treatment systems for aluminium surface treatment in the anodising sector. The certificates for Alfinox 510 (ENSAVAL process) and Alfiseal 1960 were officially awarded by the Qualanod Quality Association on 17 June 2025. This means that both products can now also be used in Qualanod member […]

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Transparent Aluminium – New Potential in Surface Treatment

Benedikt Wolter — Mon, 19 May 2025 10:13:02 +0000

Aluminium is a versatile material – but transparent? The possibility of converting aluminium into a transparent form is not new — but until now, this was only possible at great technical and financial expense. Researchers at the Ateneo de Manila University (Philippines) have now developed a simplified process that produces transparent aluminium oxide (TAlOx) in […]

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Aluminium in digital technology

Benedikt Wolter — Mon, 24 Feb 2025 14:47:15 +0000

Aluminium has established itself as an indispensable material in digital technology. With its unique properties — lightness, robustness and excellent thermal conductivity — it is impossible to imagine modern electronic devices without it. Smartphones, laptops, and data centres all benefit from the advantages of this lightweight metal.Customised extruded profiles are a particularly important component. These […]

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Influence of impurities on depth scattering during electrolytical tin colouring of aluminium

Benedikt Wolter — Fri, 21 Feb 2025 10:23:19 +0000

An experiment was conducted to investigate which impurities interfere with depth scattering during electrolytical tin colouring. The aim of the experiment was to determine the influence of individual foreign ions on the homogeneity of the deposited tin layer and the associated optical scattering properties. Experimental procedure For the experiment, EN AW 5005 metal strips were […]

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