Anodizing is an electrochemical process in which an oxide coating is grown onto the aluminium by submerging it in an acidic bath and a DC (direct current) is pushed through it.
Anodizing is not a dip process.
Type II & III sulfuric acid anodize is a fairly environmentally sustainable processes.
These are the questions we will need to be answered to provide you with a prompt and accurate quote.
While we are able to clean steel parts, running them through our anodizer will destroy them.
Different series of aluminium will anodize at different rates and have completely different finishes after anodizing.
Also, certain tempers can cause issues while anodizing. Please provide us with this information as well.
Anything from pre-cleaning, bead or sandblasting, sanding, or even paint removal. It is better to let us know so we can properly process your parts.
We do two types of sulfuric acid anodizing at Graves. Type II & Type III.
If you are unsure what your part requires contact us and we will gladly help you figure it out.
We offer a wide variety of colors at Graves. Just let us know what you are looking for and we will try to meet your needs.
We require this to know how many parts we can run at one time and if they will fit in our tanks.
This will affect the turnaround time and how many runs will be required to finish the job.
We need to make a solid contact with your part in order to anodize it properly. Please let us know where acceptable racking areas are on your part.
These are areas on your parts that may have strict tolerances or need to be free of marks after anodizing (ie. racking marks)
Masking areas may be as simple as plugging a hole to be free of anodizing or a labour-intensive process that involves chem film, taping and or lacquering.
Masking is charged by the hour depending on the complexity required and we cannot guarantee success with more complex methods.
While same-day service is available, we do require 48 hours' notice before the parts show up and may reserve the right for an additional fee to be placed on the job if our schedule has to be rearranged to fit in same day processing.
Sometimes the anodizing doesn't take due to a bad contact, holes/welds bleeding out, or there was embedded material in the part from machining that popped out after anodizing... any number of things can cause a part to be reworked.
We inspect each part for flaws before making this choice to rework the parts.
If a part needs rework due to shipping damage, flaw, or machining rework we will happily help you out. Contact us to discuss.
Please let us know within 5 days of receiving the parts if there are issues.
If you require rework done on parts we will get them done promptly.
Please contact us to discuss any issues.
Please let us know if you have any questions on our processes or quality control methods.