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Old July 31, 2012, 02:13 PM   #22
Topos
Junior Member
 
Join Date: March 1, 2010
Posts: 8
Simple Penetrating Fluid

On one of the machinist hobby sites they listed the
rates of penetration and foot pound releases:


Their most effective was transmission fluid and ammonia.
I can attest to its effectiveness.

I use this combo over my go-to-since 1967 Kroil:

A mixture of 7 parts of automatic transmission fluid
and 3 parts of ammonia. Note: since transmission
fluid is hydroscopic you must re-oil when parts are separated.

As for rust removal, again I have tested and used frequently, a bath
of white vinegar for total immersion. In a few hours or over
night you will see the rust gone. Then I neutralize with baking soda
and water. Do not leave in longer than necessary else the slime
re-coats.

Minimizes amount of clean metal that must be polished away.
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