Re: Paint prep on the 8n

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Posted by K.LaRue-VA on October 12, 2017 at 13:50:31 [URL] [DELETE] :

In Reply to: Re: Paint prep on the 8n posted by Jimmyjack on October 11, 2017 at 17:58:50:

From what I have seen in my electrolysis tank. Plain washing soda changes rust to a black oxide coating. Grease and dirt come off with the bubbles. Surfaces that are bare metal seem to darken slightly. Paint will bubble off if it has cracks or has rust under it. Good paint does not move or change, even after 24 hours in the tank.
I think this grill was brushed with a stiff bristle brush after a few hours, then put back in the tank and left to cook at 2 amps overnight. This is what it looked like when I pulled it out and dried it off.

There are some little bits of paint left at the end of each bar. They were loose and came off easy.

Flathead V8 oil pan after several hours, with no brushing or scraping.

The paint was in bad shape, and there appeared to be no primer.


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