| What is anodising? |
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Anodising is an electrochemical process that changes the surface of a metal to give it benificial properties, this makes anodising very different to electroplating or powder coating as these coat the metal in another substance to give benificial properties. The process of anodizing is only suitable for some metals and is mainly used on Aluminium or its alloys. Other metals that can also be anodised include Titanium, Magnesium and Zinc. You may occasionally hear about 'anodising stainless steel' but this process, while giving stainless a range of colours, it is technically not an anodising process.
In New Zealand most Aluminium anodising is either, what is known as Type II Sulphuric Anodising or Type III Sulphuric Anodising. Of the two types of anodising commonly used in New zealand, Type II is most used.
Type II Sulphuric Acid Anodising - This provides both a decorative and protective finish with medium wear resistance. The coating thickness can be from as little as a couple of mircons thick on car trim to 25 microns on marine or coastal applications. The anodised coating that is produced is porous and this allows for the application of colour through dyeing.
Type III Sulphuric Acid Anodising - This gives a much harder and thicker coating than Type II anodising an while not strictly a decorative coating it gives excelent wear resistance. This coating is commonly referrer to a 'hard anodising'. The colour range for hard anodising is more limited, as the colour is a result of the anodising process. |
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Anodising Testimonials - From Auckland to Dunedin and everywhere in between!
"Hi Marcel, great colours and a great job, I love it. All 3 colours are great and the grey gun metal is my favourite, we will definetely be getting all 3 colours again in the future."
Kimberley Attwell (photohigher.co.nz), Wellington
"Marcel, the [lamp] shades turned up this morning, and they are awsome. Thanks for the quick turn around, I appreciate it. Far easier than getting something done up here [Auckland]. They are installed already. Made in NZ lamp shades! I will keep you in mind for future projects. Thanks again."
Glenn Barratt (Auckland)
"Advanced Anodising Ltd were a joy to deal with. I initially contacted them because their website had a lot of useful information on it. I was new to anodising and their website was a great starting point for answering many of my questions about the anodising process. We had a rather unusual request (anodising unicycle frames) and I ended up talking on the phone a fair bit with Marcel who was very knowledgeable and helpful. They went out of their way to get the frames done in time for the world champs (which were at Christmas time and they managed to get them to us despite relatively short notice). The finished frames looked amazing and were beautifully done. We were very happy with their work. We've gone back to them twice already and will be getting more parts anodised in the future."
Peter Bier (unicycle.co.nz), Auckland
“Advanced Anodising have done a great job anodising motorbike rims for us at Action Suzuki. I would recommend them to anyone looking at getting their rims anodised, certainly if they are after great service and a great finish”
Daryl Hurley (Action Suzuki), Hawera
"I was chuffed with the anodising job you guys did for me - it exceeded my expectations. The Spyder for my mountain bike looks great."
Andrew Bryant (Mountain bike enthusiast), Wellington
"Turn around time is very important in our business. We were wrapped with the quick turn around and quality of the anodising you did for us."
Paul McSweeny (Pioneer Aero Restorations), Auckland
"I am happy to recommend Advanced Anodising Ltd. they did a great job on anodising my wheel adaptors."
Glen Lawrence (Eclipse Engineering Ltd.), Dunedin
"I found Advanced Anodising through the web and their web site made my decision easy, as their web site is informative & answered all my questions. As for the job done, well just awesome and the staff were great keeping me informed and went out of their way to insure the job was the best that could be done, if any one is unsure about the quality of the work, it's a no brainier DO IT they will not let you down.'"
Bryan Cohen (Nelson )
"Many thanks for matching so perfectly the colour of our faded window frames. Dave and Rodney Morse [The Double Glazing Company] have completed the double-glazing retrofit, and the new windows look as if they they've always been there. They totally belong, and part of the credit is yours."
John & Ann Rhodes (Greytown, Wairarapa)
