[SEL] Anyone Ever Used Phosphoric Acid to DeRust - Now Molasses

[Larry Evans]

Rupert,

I've had good success with about 15 parts of water to 1 part of 
molasses.  It won't work if there is oil or grease covering the rust.

Regards,
Larry

At 05:25 AM 11/10/2006, you wrote:
>         I'm trying to clean up some items that went through a fire and 
> sat outside for a year or so. I haven't had much luck using molasses to 
> remove rust. I must have had the wrong mixture. What percentages of 
> molasses and water do you use?
>
>
>Rupert
>
>Orrin Iseminger wrote:
>>For your crankcase, I'd suggest either molasses or a solution of salt and
>>vinegar.  Just dissolve as much salt as you can in the vinegar and pour the
>>solution into your crankcase.  It would be cheaper than phosphoric acid and
>>you probably have already have the supplies you need for the job.
>>IMHO, you'll have a slower, more controllable reaction with molasses or
>>salt/vinegar.
>>After de-rusting, I'd passivate the surface with Ospho, or similar.
>>Regards,
>>Orrin
>--
>yvt
>
>Rupert Wenig
>Camrose, Alberta, Canada.
>
>http://www3.telus.net/public/rwenig/
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Larry Evans
MailTo:LFEVANS at pacbell.net
http://www.oldengine.org/members/levans/