Evapo-Rust

[dh1633pm]

There have been many examples of rust and removal techniques. I have used many of them. Included electrolysis and acid. The best I have used is Evapo-Rust. The other day I found a rusty lug nut in the driveway. After the usual ‘how’d that get there, I choose to do an experiment using guess what. Below are before and after pictures.





Now the after shots:



I have used it on firearms parts. Dies, Even knives. Keep in mind that it will remove bluing. In the before or after, I removed nothing. I have never tried it in the bore of a barrel for fear it would get on the outside finish.

 

[MEHavey]

E-R is the greatest thing since sliced bread.
(Trust me)

 

[BigBlue 94]

ER works pretty good. But i have had it not work on some really really rusted stuff too. The items in question were some machining vises made from 1018 steel. They were raw but polished and went through a 2000° fire. Fire and water do not do steel any favors! They spent a week in ER with only meager results.

 

[Kp321]

The fire caused the formation of black iron oxide (ferric oxide) on the metal surface. It is much less reactive than red iron oxide (ferrous oxide or rust) and much harder to remove chemically.

 

[BigBlue 94]

The fire caused the formation of black iron oxide (ferric oxide) on the metal surface. It is much less reactive than red iron oxide (ferrous oxide or rust) and much harder to remove chemically.

Hmm learn something every day! It was indeed more black than red. And seriously pitted. It did free the movable jaw, but the screw only moves about 5°. I made all those tools in machinists school. Only things left, i had at work; a soft face hammer and a stirling engine powered desk fan.

I do like ER though. It works quite well, is pretty safe, and is reusable.

 

[Steve762us]

The fire caused the formation of black iron oxide (ferric oxide) on the metal surface. It is much less reactive than red iron oxide (ferrous oxide or rust) and much harder to remove chemically.

How would it respond to electrolysis?

 

[Kp321]

I would think electrolysis would eventually remove it, but not sure. My experience with black iron oxide is from power plants where it must be removed from turbine and boiler components. There it was removed by grit blasting (turbine) or long exposure to hot acid (boiler).

 

[Mk-211]

Before



After ER

 

[RKRCPA]

E-R is the greatest thing since sliced bread.
(Trust me)

I've always wondered, what was the greatest thing before sliced bread?

 

[Steve762us]

I've always wondered, what was the greatest thing before sliced bread?

TP.

 

[deadeye dick]

Bought some years ago on a recomendation. Never tried it out. Laid up with two broken toes now so i will try it out. Watching the rust vanish will give me something to do.

 

[dh1633pm]

Making things not rust is a problem in NY. Especially with our humidity and winters. Evapo-rust certainly helps. I have used it on old hammers, knives, gun parts, tools, and all sorts of things that go rust in the night. It does work wonders.

 

[Misplacedtexan]

Bought some years ago on a recomendation. Never tried it out. Laid up with two broken toes now so i will try it out. Watching the rust vanish will give me something to do.

Kinda like watching grass grow !

 

[dh1633pm]

Or Golf on TV. Good thing is that it will vanish.

 

[greyling22]

It will also take off a black oxide finish in a heartbeat.

 

[Bfh_auto]

I'm definitely a fan.
I usually just use vinegar instead. It's cheaper and my wife always has it for cleaning.

 

[P89DCSS]

Vinager is an acid that etches metal.
Evaporust is a chelation that removes rust and leave metal.

Big difference.

 

[wbm]

I've always wondered, what was the greatest thing before sliced bread?

Beer?

 

[deadeye dick]

Kinda like watching grass grow !

Tell me about it Got 20,000 sq. feet of Zoyza that nend cutting every week to look good. Cut it last week after a month. hat a mess.

 

[hunt127588]

Evapo-Rust is great stuff. I used it to clean up a press and dies. Made them look like new again and it's supposedly non-toxic.