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Rust Removal

#273507 by wmichaelb » Sat Aug 22, 2020 4:31 pm

The legs? on my greenie base are a bit rusty. I have a can of the Shopsmith green spray paint, but would like to ask of this august group what sort of rust removal product you might recommend for cleaning up the legs in such a way that they would be repaintable. What's your experience, and thanks in advance.

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Re: Rust Removal

#273508 by jsburger » Sat Aug 22, 2020 4:39 pm

If it was me, I would check with auto body shops in your area and see how much it would cost to have them media (sand) blasted. Otherwise a drill and a wire wheel to do it your self.

There are gel type (Naval Jelly) rust removers but I have no experience with them. Maybe someone else can advise on them.

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John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT

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Re: Rust Removal

#273509 by edma194 » Sat Aug 22, 2020 5:17 pm

Use Evapo-Rust first. Legs are pretty big so if you can't immerse them soak paper towels with the stuff and let them sit on the rust for an hour or more. That will remove rust and leave bare metal. You can sand, grind, or blast afterward if you like.

If you are in a hurry you can use rust converter products that will turn the rust to a hard black substance that you can paint over. I just did that on some legs before touching up spots.

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Re: Rust Removal

#273511 by db5 » Sat Aug 22, 2020 6:03 pm

Evapo-Rust works well but takes a long time. Soak some old rags, shop towels in it, cover the legs (removed) with them and wrap in saran wrap. Leave for 24+ hours and check. PRN

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Re: Rust Removal

#273512 by jsburger » Sat Aug 22, 2020 6:27 pm

Evapo-Rust is great stuff. I use it here. It is reusable but you have to be able to recover it to reuse it. That means a big tub and lots of Evapo-Rust for for MK-5 legs. Rags or paper towels soak and it will likely take a long time and require additional applications of the product. You also won't be able to recover the Evapo-Rust so it is lost money.

I have a blast cabinet here for my restores but it is not big enough for MK-5/V legs. I estimate it would take 30 minutes a leg. Maybe 45. A commercial shop would take less than an hour for both legs.

If you don't have the budget then a drill and a wire wheel and elbow grease will be the cheapest.

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John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT

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Re: Rust Removal

#273542 by Hobbyman2 » Sun Aug 23, 2020 9:56 am

A good paint stripper , sand blaster , soda blaster , sander ? My guess is there are many ways that will give good results, I sprung for a soda blaster kit years ago off ebay and it gives good to better than good results . its not as abrasive as sand blasting and is not toxic { no silica }, with use of a sifter the soda can be reused . My .02

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Hobbyman2 Favorite Quote: "If a man does his best, what else is there?"
- General George S. Patton (1885-1945)

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