[Healeys] Fwd: To: The World as Defined by healeymanjim

[RThrift]

My guess is that more washing soda just increases the current.  That's good,  IF 1) the power supply can handle it and 2)  the foaming doesn't get too violent.  It depends on the setup.  Either one of those issues could be the limiting factor in any specific setup.  

More current means more chemical reaction happens in a given time (also more heat is generated).  A tablespoon per gallon should work but it would probably clean up FASTER with more soda, until you have so much current that the voltage starts dropping.  

The current is more important here than the voltage is.  So if you can switch from 12  to 6 volts but double the current capacity of the charger (and throw in more soda), that would also be good, as far as speed goes

Don't use stainless as an electrode.  It generates some chromium which is hazardous.

Richard Thrift


---- David Schweninger <quenty at ntelos.net> wrote: 
Richard, Hello
  I'm not sure if there is a correct amount. I reference an article by  
Andrew Westcott.  He tried various  % and wound up at 10%. He is  
primarily concerned with restoring small artifacts. Then---other than  
small, maybe our Healeys qualify.
Google his name. Interesting web site.

                   Dave

PS I forgot to mention Wescott says to  keep metals other than iron  
out of the tank. I stripped a steel part with a brass rivet and it  
worked fine. maybe it degrades the solution.



On Feb 11, 2009, at 7:21 PM, richard mayor wrote:

Hi Dave, I only have one question, regarding the washing soda. I have  
always thought that you only need to use about one tablespoon per  
gallon. Does using more enhance the process?  Richard