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Hi. I am a student in a C.T.C in Bristol, England. I am currently doing a project in Technology. I have to design and manufacture an automatic anodizing tank, which detects when it is full and then lowers parts into it. I am not sure what materials to make it from though, and I would be grateful if anyone could help me with it. I need to know what materials will not affect the chemicals, and what sort of moisture sensors I should use to detect when it is full.

Thanks Loads.

MIKE O [last name deleted for privacy by Editor]
Bristol U.K.


Hopefully you have some books on hand that introduce you to anodizing. Were it otherwise, you would be learning totally the wrong approach to designing anything. You can build an anodizing tank from PVC, polyethylene, polypropylene, or vinyl ester fiberglass, or you can build a steel tank and use a drop-in liner of PVC, or a fixed liner of PVC or lead.

The least expensive (and very trouble-free) float switches are mercury-filled PVC float balls.

What has your professor told you about necessary fume extraction? Will you be operating your device under a lab hood? (I hope so).

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey


I have not had any info on extraction yet.
I shall have to add that to my research.
Thanks a lot for your help.


- Bristol, U.K.

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