Evapo-Rust

Thomas Linton

Thomas Linton

Joined
Jun 16, 2003
Messages
20,201
We have had a couple of forumites post on this product for rust removal (Thanks!). My local Walmart does not carry it, but a Google search of "Evapo-Rust" located the manufacturer's web site, and clicking on "Distributors" leads to local sources - one only 5 mi. from me. Can't wait to use it on AC kardas. Evapo-rust is apparently now a "mil-spec" product.

TAL
 
Couldn't find a local source (Silicon Valley) closer than Oakland, so I ordered directly from Harris (the manufacturer). The lady said that Walmart carries it, but only certain stores.
 
Sounds like what I need for some of the ancient tools I have. Some belonged to GGrandfather so I hate the idea of wire wheels.:)
 
Originally posted by Aardvark
The lady said that Walmart carries it, but only certain stores.
Click to expand...

What section do you find it in?
We have 2 Super Wal- Marts here and I am lost in 40 acre stores.....
 
Originally posted by Roger Smith
What section do you find it in?
We have 2 Super Wal- Marts here and I am lost in 40 acre stores.....
Click to expand...
Not sure.
but it's probably solvents / paints in hardware.
Unless your store does differently.

Most stores of this type you can call and ask to speak to someone.
In Hardware or Paint most likely re stock available.
Sometimes the operator can access this on their computer.
 
OK, got some. No stink. Looks like "Mellow Yellow" pop my son used to like (yeech!). Removes rust as advertised. Leaves steel darkened, but that comes off with extra-fine sandpaper or crocus cloth. 6 oz. in yogert cup for 10 kardas and mostly left after to reuse.

TAL
 
How bad were they before you treated them? And how long did they soak?

I just ordered some AC kardas and a gallon of EvapoRust.
 
What about something called 'permatex' brand 'Naval Jelly'?
Has anyone used this? It says it's a rust dissolver.
extremely corrosive, vapour harmful.. works in 5-10mins apparently.

I have yet to try it, but i've got a bottle sitting right here.
hmmm., i just noticed something at the bottom 'loctite corporation'.
Seems like they make it, and it's labelled as this stuff.

it's pink!

I'll try it out soon and let you guys know, perhaps.
 
Aardvark, the rust was surface red rust with some shallow pitting on a couple of the pieces. No grease. I let them soak in yogert cup full of product for about 1/r hour. Pitted examples went back in for another thirty minutes.

Silverlight, Naval Jelly has phosphoric acid. In addititonal to nasty features you already noted, it REALLY leaves steel blackened (= "protective coating").

TAL
 
And, I just started my first serious attempt
to use Evapo-Rust this afternoon.

Had to double the volume with water to make the quart
I had cover the object in the container I used.

Really, R-e-a-l-l-y slow acting once diluted.

But it's still working.

I'm guessing the doubled volume has
slowed it down by several times.
 
I was just thinking that
if there was a way
to gently agitate the solution
it would probably work faster.

I've thought of several ideas
but they are not as gentle
as I would like.

Think I'm going to throw one of those thumb-sized
"mosquito repellant" hang-ons into a plastic bag
& sink it into the solution tonight.
Might be just enough.
 
Turns out if you leave a piece in for hours (bad pitting), it also turns steel a dull grey - removable w/ sandpaper. By then, the solution is black as ink, but still works just fine.

TAL
 
was just thinking that
if there was a way
to gently agitate the solution
it would probably work faster.

Maybe an aquarium pump with an airstone?
 
Naval Jelly-

i've had a good bit of experience with this stuff, not on metal as far as i can recall, but i would undoubtedly use it for blades/tools.

You apply the "jelly" and you work it with a brush. You gotta work it.
It does'nt hurt the skin, at least not mine, and i came into contact with it plenty... it's just not that harsh.

I removed 20 years worth of rust and orange stain out of concrete and brick.

it worked!

I've yet to see Evapo-Rust, but thanks for bringing it up. I'll check around wally world. Meanwhile, Naval Jelly is in just about every hardware store and it's rather cheap, plus you dont need alot, just a good stiff-ish brush.
 
Air stone and pump would work but you'd need to more-or-less seal the top to prevent small splatters of solution from escaping as bubbles emerge/pop (It's expensive stuff.) Saran Wrap and rubber band?

TAL
 
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