52352

Pickling paste without hydrofluoric acid  

June 10, 2009

Is there a pickling paste available for post weld finishing of stainless steel available with no hydoflouric acid.Im aware of <0.5% pastes but not Zero hydrofloric.

We produce a mobile electropolisher so are interested in developments in pickling paste

Richard Ray
manufacturer of post weld finishing machine - Ballina, NSW, Australia
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June 30, 2009

This is a very difficult task. He have successfully developed green" pickling pastes without nitric acid for stainless steel, carbon steel, titanium. We are currently working on eliminating hydrofluoric acid also. However work is not completed yet.

Anna Berkovich
Russamer Lab

Pittsburgh, Pennsylvania

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