Rust Removal Products
Posting Guru
Joined: Jun 2001
Posts: 1,236
Likes: 2
From: Vancouver Island
Washing soda can be found next to the laundry detergents at most grocery stores.
As for the process, there's threads here and in other forums if you search. "washing soda" and rust as search terms on google gets a whole page of links.
If you already have a pressure washer, you can get a sandblasting attachment for it. It has the advantages of no dust, and because water is incompressible, it's more efficient than blasting with air. The main problem is drying off the piece so it doesn't rust again. I've only tried it for cleaning up an axle, so I don't know if it's likely to damage sheet metal.
As for the process, there's threads here and in other forums if you search. "washing soda" and rust as search terms on google gets a whole page of links.
If you already have a pressure washer, you can get a sandblasting attachment for it. It has the advantages of no dust, and because water is incompressible, it's more efficient than blasting with air. The main problem is drying off the piece so it doesn't rust again. I've only tried it for cleaning up an axle, so I don't know if it's likely to damage sheet metal.
Freshman User
Joined: Aug 2010
Posts: 26
Likes: 0
Hey there,
I just tired out a product called Evapo-Rust. It's some kind of chelating solution that eats rust but leaves ferrous metal alone. I've found it works OK, but the quantities I am likely to use will cost me big $$$ for my 1973 SCS project.
My question: Are there other products (homebrew or retail) that work like this evapo-rust stuff that might be easier on my wallet that people may know about?
I just tired out a product called Evapo-Rust. It's some kind of chelating solution that eats rust but leaves ferrous metal alone. I've found it works OK, but the quantities I am likely to use will cost me big $$$ for my 1973 SCS project.
My question: Are there other products (homebrew or retail) that work like this evapo-rust stuff that might be easier on my wallet that people may know about?
Freshman User
Joined: Aug 2010
Posts: 26
Likes: 0
I tried the vinegar (60%) and water (40%) mix, it works quite well. Especially if you soak the parts in it. You will also need to wire brush it or some such. I read about it somewhere here in the forum while doing a search. I used this soaking method on my bumper nuts & bolts, worked really well, it saved me from having to buy new ones ($35). The post also said that if you are using it in a spray bottle on things like the frame and such, that you should neutralize the effects with baking soda and water once you have the rust off.
i ain't rite
Joined: Mar 2005
Posts: 65,507
Likes: 5,563
From: Marlboro Mental Hospital.
there is no need to media blast with phosphoric acid. simply pressure wash the area to get the rust flake off, then treat with the acid. it will convert the rust from iron oxide to iron phosphate. you will know when it is finished because the metal will turn a matte black color.
i spray it on, and let it dry for 48 hours before giving it a second coat. then i let it dry for 4 days and paint.
i spray it on, and let it dry for 48 hours before giving it a second coat. then i let it dry for 4 days and paint.
Thread Starter
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Senior User
Joined: Aug 2009
Posts: 331
Likes: 0
From: Courtenay, BC, Canada
Molases Test complete
Well I just fished out the bits of metal from my molases test bath. After about 3 weeks all the rust is gone, and the parts are dull grey. I would have to say it's a pretty good and cheap solution to my rust removal problems on My scs project. I can get 5 gallons of Molases from the local feed store for $19.00 CAD. I think I'll get a couple of pales of molases and build a molases hot tub in the back yard this fall.
Yep, it sure beats the $1200 or so dollars I thought I might spend on evaporust, or coke and sos pads.
Yep, it sure beats the $1200 or so dollars I thought I might spend on evaporust, or coke and sos pads.
Senior User
Joined: Jan 2011
Posts: 149
Likes: 1
How would Electrolysis work with Evaparust or Molasses
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New User
Joined: Feb 2011
Posts: 9
Likes: 0
From: Seattle
Confused
Sorry, but I'm a little confused. I want to take the rust off the surface of the truck without taking the hood, doors and so forth off. It sounds like I blast it with the power washer, let it dry ( do it on a hot day) and then paint it with acid. What kind of acid is best, where do I buy it and what do I apply it with?
After the 48 hour waiting period do I then prime it or sand and prime or just apply the paint. I am seriously considering Rust-olyem (sp?)
BYW, a post suggested doing all the prep work and then taking it to MACO. I had them paint a car for me in the past and the pain fell off in a couple of years.
After the 48 hour waiting period do I then prime it or sand and prime or just apply the paint. I am seriously considering Rust-olyem (sp?)
BYW, a post suggested doing all the prep work and then taking it to MACO. I had them paint a car for me in the past and the pain fell off in a couple of years.
Senior User
Joined: Feb 2011
Posts: 252
Likes: 0
From: Moore, OK
I saw a mention for Naval Jelly. Any hardware store should have it. Really only works great for surface rust. Brush it on, leave it, rinse it off.
I have used it to remove gun blue, which is a form of oxidation, and light surface rust.
I have used it to remove gun blue, which is a form of oxidation, and light surface rust.
New User
Joined: Feb 2011
Posts: 9
Likes: 0
From: Seattle
OK. I am cleaning the rust off the exterior body of my Ford. That means the hood, fenders, rear rails and top of the cab. My plan is to power wash it to get the flakes off and dirt off, let it dry and then paint the rusted areas with naval jelly or something like that. Will this work or should I purchase another product?
Senior User
Joined: Feb 2011
Posts: 252
Likes: 0
From: Moore, OK
should work. You may have to apply the Naval Jelly more than once. It goes on pink, like Ghostbusters 2 slime and turns white when it reacts with the rust. Let it set, wire brush, rinse, dry well, repeat as needed. if it is light rust you may cut out the wire brush and reapplication. spray with some kind of rust converter before priming to get any little bits left behind.
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