removing rust

[JoeMeg]

This site is great! I havent had this much fun since i was a kid. I set-up a small cleaning operation using plain baking soda and a regulated 12vdc 3a power supply. Really works nice. 3a at 12vdc probably cheaper than 3hp air comp. motor also.Couple things though, does the part stop bubbling when all the conversion is done? And,what do we suppose the black residue left behind is?

[racerone3]

not sure what the black residue is, but it scrubs right off with a little scotch brite. when the bubbles stop it isn't cleaning anymore... it's either done, or you need to scrape a layer off and put it back in.

[PlumCrazy]

Does it leave a film on the metal, how do you prep it for painting?

[rkthev]

Soda Ash sold for adjusting pH in swimmings pools works well as electrolyte, and is pretty cheap.

[simpleton7016]

I just use a hand held wire brush and scrub the residue off under water. In the summer, I will take the parts outside and blast them with a pressure washer. Once they are dry, I immediately coat them with a rust converter/inhibiter. That will keep them from rusting until they are ready for paint.

[PlumCrazy]

I just use a hand held wire brush and scrub the residue off under water. In the summer, I will take the parts outside and blast them with a pressure washer. Once they are dry, I immediately coat them with a rust converter/inhibiter. That will keep them from rusting until they are ready for paint.

Is that a spray? What brand?

[simpleton7016]

I use a brush on brand marketed by "Plasti-kote". I like the brusk on better because it will fill in some of the smallest pits that exist from years of neglect and rust! You can see a sample in the following thread about 5 responses down:

http://www.6x6world.com/forums/other...on-thread.html

[racerone3]

here are some pics of an old milk can i threw in the tank the other day. it removed everything, paint, rust, stickers. in the "after" pics, i had scrubbed it off with a red scotch brite under running water

[Robinhood02]

that black pasty stuff you guys are talking about , take some of that dry it out it becomes powder mix that powder with the right amount of aluminum filings then light it with a aceteleene cutting torch then run like heck because when the atomic reation starts it will burn a hole right through your 8" thick shop floor ,or your engine block, or a military Tank LOL

[brushcutter]

burn a hole right through your 8" thick shop floor

is that the distant sound of EXPERIENCE I hear?

[JoeMeg]

racerone3, in your last post, in pic 4 of 5, what type mat'l are the consumable electrodes in the tub?Joe

[PlumCrazy]

I'm using 3/4" EMT and it works ASSUME.
The EMT will deteriorate quickly, but it's really cheap!

[racerone3]

my electrodes are old warn out lawn mower blades. i have a small engine shop at the house so i always have plenty of junk blades laying around. every few days of use, i take them out and scrape them off with a putty knife. the same electrodes have been in use sense the first of the year, and still have a lot of use left in them.