[TheForge] Pickling problem

[Peter Fels And Phoebe Palmer]

Sometimes simmering the piece in hot soapy water for a while, 
followed by a couple of days soaking will solve it.
Generally a chipping hammer and repeated thermal shock will 
dispel the worst of it..
On the other hand, you may have discovered a new finish...good 
luck...pf

James Binnion wrote:
> 
> On Dec 5, 2007, at 8:20 PM, Bruce Freeman wrote:
>>
>>
>> Well, something happened unexpected.  The "rust"
>> turned into a thick, black layer, quite unsightly.
>> "No problem", I thought - I'll just pickle it off.
>> Well, a day or more in sodium bisulfate pickle (albeit
>> of uncertain strength) hardly touched it.
>>
> 
> 
> Is the pickle hot?
> 
> This sounds like the same crud I get when torch brazing iron using Handy 
> Flux which has other goodies in it besides borax, and it can be a bear 
> to remove. Sand blasting will remove it but an extended (1 Hr) soak in 
> hot (140F - 160F) pickle (citric acid) will remove it as well. Putting 
> the piece in a container of pickle in the ultrasonic cleaner speeds up 
> the process as well but that is not a standard blacksmith studio tool.
> 
> 
> James Binnion
> jbin at well.com
> 
> 
> 
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