Why is there White Residue after using Navel Jelly#10067;

560Dennis · Jul 19, 2020

Don’t seem to be able to find out why the white residue is on the cast iron manifold. Wire brushed it good , coated it let it set for five minutes ,rinsed it , air dried it. This white residue keeps coming back ?

showcrop · Jul 20, 2020

The subject comes up regularly here. It is a residue left by the phosphoric acid converting the rust. I typically transfer small parts from the acid to a clean water rinse, and pressure wash larger ones. It resists removal due to the roughness of the manifold surface. Any that resists a good wire brushing is unlikely to interfere with the bonding of your paint.

Randy-IA · Sep 2, 2020

(reply to post at 11:24:57 07/19/20)

Have you tried electrolysis? Water + washing soda, old style manual battery charger or rheostat controlled voltage/amperage supply (120 volt welder), a plastic tub and some sacrificial metals (stainless works good) and some time.

Removes the rust, leaves the good metal behind.

478ntractor · Sep 19, 2020

(reply to post at 11:24:57 07/19/20)

iTS THE GOOKUM PUCKY YOU PUT ON THE THINGAM JIG THAT CAUSE THE WAYCHMA CALL IT TO TURN WHITE.
Hope I could help you out.

Why is there White Residue after using Navel Jelly#10067;

560Dennis

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showcrop

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Randy-IA

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478ntractor

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