What is anodising?
Fundamentally anodising is a finishing process of aluminium which enhances its decorative, durability, and corrosion-resistant properties.
In technical terms it is an electrolytic passivation process which is used to increase the thickness of the natural oxide layer which is formed on the surface of aluminium.
Unlike other finishing treatments such as powder coating or plating, the aluminium oxide formed from anodising is embedded with the underlying aluminium, as opposed to being applied on top of the aluminium's surface like those mentioned above. This means that the anodised layer cannot be chipped like other surface treatments, giving great durability.
The thickness of aluminium oxide created is tightly controlled through the process in order to meet customer requirements. Generally speaking most anodisers offer thicknesses from 5-25 microns, along with the ability for 'flash' or 'shot' anodising at around 2-3 microns.
What are the benefits of anodising?
The Benefits of anodising are well known throughout the aluminium industry due to its key strengths. These include:
What about anodising and the environment?
The anodising process is a safe process that is not harmful to human health. Coupled with the face that anodising does not use heavy metals and is simply enhancing and reinforcing an already natural occurring oxide layer on the aluminium, the process is non-hazardous and produces no harmful toxins or waste as a result.
Our anodising process meets all current and planned UK & EU Legislation. Read more about our process here.
What about alloy types and anodising?
In general, alloy series 1000-7000 provide the best corrosion resistance couple with aesthetics. Snelsons mainly process 6000 series alloys which are known as some of the best alloys for anodising. For bright anodising, we recommend 6463 Bright Trim alloy due to its properties and characteristics which ensure the best surface finish when bright anodising. However alloy selection should be chosen to match not just finishing requirements but also strength and performance requirements and therefore alloy choice is best discussed on a case-by-case basis to ensure the best overall alloy is chosen for the project. Snelsons can help assist with this so please don't hesitate to get in touch and discuss your requirements with us.
What anodising services can Snelsons offer?
Having been in the Aluminium Extrusion industry since 1963 Snelsons has a vast wealth of experience in everything to do with Extrusion. One of our key service areas is anodising. With over 30 years in the anodising market, coupled with our highly experienced staff; you can trust and rely on Snelsons with the utmost confidence for your anodising requirements.
We offer a comprehensive range of anodising finishes as stated below:
Where can i find out more?
To read more about our anodising process, click here to view our webpage on our anodising capabilities and services.
Alternatively, feel free to email firstname.lastname@example.org or give us a call on +44 (0) 1606 553580 to speak with one of our friendly sales team members who will be more than willing to discuss any requirements you may have.
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