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topic 9576

Masking Aluminum parts for Chromic Acid Anodizing

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Dear Sirs,

We are always have many problems with masking aluminum parts for Chromic Acid Anodizing (Type I Class I). If anyone can suggest the masking solution for the a.m. process ?

Thanks in advance.

Ian Lisakov
- Israel


There are many ways of doing masking on aluminium.

One way I can suggest is by using a special ink which is printed on the area to be masked and then a special powder is applied and it is baked till the powder and ink melt and resolidifies. It can then be used to either etch or do multicolouring. The masked area covered is removed by a special solvent.

Up to six colour jobs are possible.

Hope this solves your problem. If not search the web for dyes for anodized aluminium.

- Bombay, INDIA


Dear sir:

There is a masking which is a liquid that dries off in 24 hrs which is very good hope this will solve your Problem

Thomas VK
- Mumbai, India

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