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Printing on phosphate coated steel component

How to print a permanent number on phosphate coated steel component. The color of print required is WHITE.

Sudhakar
- Bangalore, INDIA
2006

By my definition of permanent, you can not. Phosphate can be abraded of without a great deal of problem. Days, weeks or years of durability would be totally dependent on how it was used.

James Watts
- Navarre, Florida
2006

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I agree with Mr. James Watts that the phosphated steel can be easily abraded with a sharp needle/object. By selectively removing the phosphate coating on the coated steel you can create a print/mark.

Phosphate coating is mainly a pretreatment and not a finish of its own. So the durability of your print/mark depends on the environment.

Where you are going to use this?

T.S.N. Sankara Narayanan
- Chennai, Tamilnadu, India
(ed.note: The good doctor offers a fascinating blog, "Advancement in Science" )
2006

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Try stencil electro etching.

Khair Shishani
aircraft maintenance - Al Ain, UAE
2006

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Laser printing machines leave a nice white print. However it will last as long as the phosphate.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

2006