products Archives - Alufinish

What happens during cold sealing?

Benedikt Wolter — Fri, 13 Jan 2023 12:47:49 +0000

The porous aluminium oxide layer that is present after anodising or colouring is still unsealed. This state would not provide long-term protection, e.g. on building surfaces. Subsequent sealing of these layers is therefore essential for long-term protection. In addition to the frequently used hot sealing, it is also possible to seal the aluminium oxide layer in […]

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Removing polishing pastes – The important aspects of this process

Benedikt Wolter — Wed, 11 May 2022 15:59:16 +0000

For a shiny and brilliant-looking aluminium surface, mechanical polishing of the raw material is often carried out prior to the actual chemical pretreatment process in the anodising plant. This mechanical polishing is then usually done by using special, solid polishing pastes which are applied to the polishing wheel for this purpose. These pastes usually contain […]

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Easier gold colouring in anodising process thanks to Alficolor Gold 602

Benedikt Wolter — Thu, 21 Apr 2022 13:53:34 +0000

In addition to pure organic colours, salts based on ferrioxalates are usually used for gold colouring in anodising operations. For decades, these salts have enabled intensive and durable gold colouring, which is often used for the design of facades in the architectural sector. Until now, powdered colouring products based on ferrioxalates had to be pre-dissolved […]

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Free of deposits for anodising thanks to good desmutting

Benedikt Wolter — Wed, 19 Jan 2022 18:02:54 +0000

Desmutting is used in chemical pretreatment after an alkaline etching process or a polishing process. Due to the removing effect ("etching") of these process steps, a more or less strong mix of different alloy components remains on the surface, depending on the material alloy. This is often visible as a coating, but sometimes not. […]

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Alfideox helps with desmutting problems

Benedikt Wolter — Wed, 19 Jan 2022 17:52:43 +0000

The desmutting of etched or chemically polished aluminium surfaces is important to remove remaining tarnish and oxide layers before the anodisation process. This avoids possible staining or color changes of the anodised product. Often, the normal desmutting resources such as nitric acid, sulfuric acid or spent anodising bath solution are not sufficient to remove all […]

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Hot sealing at a new speed – the Fastseal AL process

Benedikt Wolter — Mon, 13 Dec 2021 17:52:56 +0000

In the anodising process, one step in especially takes a lot of time: hot sealing. But this no longer has to be the case. With the FastsealAL process from Alufinish, you can save a lot of time in the anodising process. Nowadays 2 min./µm are already possible by using suitable hot sealing additives while still […]

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A variety of colours from light bronze to black: the Tin ColorAL process

Benedikt Wolter — Tue, 23 Nov 2021 08:55:01 +0000

The Tin – ColorAL process is based on tin (II) salts and is known for the variety of colours produced from C31 (champagne colours) to C35 (black). The tin – ColorAL process is based – as the name suggests – on tin(II) salts and is applied by means of alternating current. The two-step colouring process […]

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For the facade, only the best is good enough: The ENVIROX NR system

Benedikt Wolter — Wed, 03 Nov 2021 12:42:00 +0000

The ENVIROX NR system (products Alficoat 748 and Alficoat 748/3) was already developed at the end of the 90s, then tested and approved for applications on aluminium surfaces by renowned quality communities (Qualicoat, GSB International). It was even subjected to the 10-year outdoor weathering test specified by GSB International in Hoek van Holland – passing it successfully. […]

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New “power” for your anodising system

Benedikt Wolter — Tue, 19 Oct 2021 10:49:55 +0000

Alfiseal 942 – Easy – Seal AL Process You need a hot sealing additive that will achieve clean, dry-to-handle surfaces with “anti-fingerprint” properties? Perhaps you are looking for an additive that meets all the Qualanod requirements and ensures the long-term stability of your sealing bath? Or maybe you need a special hot sealing product that […]

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Alupolish – approval extended

Benedikt Wolter — Thu, 12 Aug 2021 13:18:20 +0000

We build on trust, in all aspects of our business. And an important part of trust is the high minimum level of quality. Therefore, we are particularly pleased that the approval for our product Alupolish has been further extended. The approval test according to approval RAL-GZ 632 and the GRM test guidelines was successfully carried […]

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