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Pickle bath for castings?

I am looking for a pickle bath make up. I have some casting parts that are need to be stripped. I have heard that pickling them is the best way to go. I have also heard that a mixture of nitric acid and ammonium bifluoride is great. I do not know the ratios and are there any other pickling baths for stripping casting parts. Any help would be appreciated.

Elwood Allan
- Tualatin OR USA
2000

Stripping what from what kind of casting?

Tom Pullizzi
Falls Township, Pennsylvania
2000

In addition to Toms question..what are you trying to remove from the casting?

Marc Green
anodizer - Boise, Idaho
2000

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