[TheForge] Re: Pickling solutions

[Charle B Vincent]

Auto paint and auto body supply stores sell a dilute phosphoric  It is 
called metalprep.   Some sell a stronger solution that you dilute before 
use.  It is wiped on before primer to convert/remove any seeds of rust 
that can grow beneath the paint layer.    Phosphoric is also the active 
ingredient in naval jelly.   After years of removing rust and trying 
about everything, I haven't found anything chemical that works better 
than phosphoric, preferably in a strong naval jelly, not the weak stuff 
sold at wallart.  I have even tried the "converters" out there that turn 
your rust into a black texture that can't be removed with a chisel.    I 
haven't had a chance to use the electro removal process yet though, 
always been too easy to sandblast so far.

Charles

Clyde Wynia wrote:

>Farm supplie stores carry it. It is used for cleaning out milk lines. It
>sells there for far less than the chemical companies. (Or for the really
>dilute phosphoric acid get Coke or Pepsi).
>
>  
>
>>Where do you get phosphoric acid? How much does it cost?
>>Darrell
>>    
>>
>
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