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Proto Tech Tip – Anodizing Your Custom Enclosures and Parts


Hey everybody, Chris here from Protocase with a Proto Tech Tip and today we're going to talk about anodizing So here at Protocase, we offer anodizing for your custom aluminum enclosures or parts

Anodizing is an electrochemical process used to make the surface of non-ferrous metals extremely hard, which makes it less likely to corrode At Protocase, we offer two types of sulfuric acid anodizing and that is Type II and Type III So what's the difference? Both involve an acid bath with electricity, which when used together enhances the oxide layer on aluminum The key difference is that for type III anodizing the temperature of the sulfuric acid is lowered and the bath runs at a higher voltage So to be exact, type II anodizing is processed at 19 degrees Celsius or 66 degrees Fahrenheit whereas Type III anodizing is processed at 0 degrees Celsius or 32 degrees Fahrenheit

The end result is a denser wear resistant layer that creates a harder than smoother finish than Type II And this is very difficult to show through a screen but if you have both in your hands together you can actually really feel the difference So if you're dealing with a project that requires a part or enclosure to be exposed to the elements of heat or electricity, an anodized finish is resistant to corrosion and because of its hard surface, especially when using Type III, the finish will provide a durable layer that will give the enclosure or part a very long lifespan resistant to scratches and wear And anodizing also just gives you a really striking look and there's actually a lot of colors you can choose from There's even a vibrant green and viole,t which fall under Type II anodizing

So if you're sending in your next project into Protocase to manufacture, it's really important to understand how anodizing will affect the tolerances Remember each manufacturing service is different so if you are using another company for your next project, just be sure to check with them first So if you're using a Type II anodized finish, it will add between 00004" to 00008" thickness, so less than one thousandth of an inch thickness and Type III will add 0

001" thickness One other thing to remember when creating your design is you're going to want to make sure all your fasteners in your parts and enclosures are aluminum to match the metal that you've selected and this will ensure that the fasteners don't melt or corrode due to the solution that is being used So feel free to check out our website for more information regarding this finish including size restrictions and a complete list of colors We put some direct links in the description below and be sure to also check out our blog which outlines many other technical tips or just send an email to info@ protocasecom so thanks for watching and I hope this information helps be sure to tune in next week where we give you another ProtoTechTip

Source: Youtube

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