Click Links Below For:

pdf logoSDS

pdf logoProduct Data Sheet


Frequently Asked Questions

De-rust a Chassis

Clean-Tech Article

Before/After Gallery

HMIS 0 0 0 0

Evapo-Rust ® Rust Remover

Safely Remove Rust

engine before and after evapo-rust rust removerRemove rust with EVAPO-RUST®, an amazing safe RUST REMOVER which is utilized by the U.S. Army, U.S. Navy, U.S. Air Force, FBI, NATO, Government Contractors, Engine Builders, Auto Enthusiasts, Gunsmiths, Forensic Labs, OEM’s, Farmers, Antique Restorers and more.

EVAPO-RUST® is a soak type rust remover. It is safe for the user and non-corrosive to steel. It does not harm brass, copper, aluminum, gold, lead, titanium, steel, cast iron, chrome solder points, vinyl, plastic, rubber, silicone, glass, cork, or wood. EVAPO-RUST® can be used over and over until it absolutely stops working. On average, one gallon de-rusts up to 300 pounds of light to moderately rusted steel.

Evapo-Rust will remove rust from all types of metals containing iron. Evapo-Rust does not remove rust stains. Rust and rust stains are two different things.


How Evapo-Rust worksEVAPO-RUST® is a soak and works at a pH of 6.1 to 7 (neutral) through selective chelation. This is a process in which a large synthetic molecule forms a bond with metals and holds them in solution. Most chelating agents bind many different metals. The active ingredient in EVAPO-RUS®T bonds to iron exclusively (the competitors bond to many metals). It can remove iron from iron oxide, but is too weak to remove iron from steel because the iron is held much more strongly. Click the icon to enlarge the "How it works" picture



EVAPO-RUST® is easy to use. Fully immerse the rusted item in EVAPO-RUST® and check progress in about 30 minutes; no scrubbing necessary. Soak times will vary from 30 minutes to 24 hours depending on severity of rust, type of steel, and temperature. EVAPO-RUST® is water based, therefore the active molecules will slow down as temperature decreases and increase as temperature increases. We recommend utilizing EVAPO-RUST® at a bath temperature above 60° F. If the fluid temperature is below 60F, there will be little if any rust removal.

EVAPO-RUST® has a surfactant to aid in penetrating oils and dirt. However, surface contaminants do slow the process and can shorten the life of EVAPO-RUST® . Oils, greases and cosmoline should be removed prior to de-rusting. Cleaning the part prior to soaking in EVAPO-RUST will also help in the disposal of the spent product.

AFTER EVAPO-RUST, you have several options:

1)Wash and rinse the item off and go to the next process for painting, coating, etc.
2) Wash & rinse the item off and apply a long term rust inhibitor such as Rust Bandit (Indoor Water Based Rust Inhibitor)
3) Wash & rinse the item off and apply a long term rust inhibitor (Outdoor Oil Based Rust Inhibitor)

  • Weapons/Finish
  • Motorcycle Tanks
  • Transport/Disposal
  • Shelf Life
revolver before after Evapo-RustEVAPO-RUST® is highly recommended by the NRA gunsmithing school and is utilized by FBI, CIA, NATO and other law enforcement and forensics agencies. EVAPO-RUST® perfect for removing weapon finishes such as Bluing, Parkerizing, Zinc Phosphate, and Browning. Anodizing, powder coating, chrome, nickel, ion bonding, paint, and most other coatings will not be removed as long as they do not contain oxides. EVAPO-RUST® will not harm lead or solder points.

gas tank evapo-rustYou can use Evapo-Rust to remove the rust from a gas tank in one of two ways described below, depending on if your tank is still attached or has been removed:

1) Completely fill the tank with Evapo-Rust and allow to sit for 2 – 4 hours. Drain completely and rinse well with water. Air dry and fill with gasoline immediately to eliminate flash rust.

2) Pour in 1 gallon of Evapo-Rust and rotate gas tank every hour until the rust has been removed. Drain completely and rinse well with water. Air dry and fill with gasoline immediately to eliminate flash rust.

EVAPO-RUST® is non-hazardous and ships U.S. Postal, UPS or regular freight (class 55). The product is sewerable in neat form and, in most cases, only the chelated iron content of the solution will dictate disposal requirements. The pH of virgin EVAPO-RUST® is 6.1. The pH of the spent solution will vary from 6.1 to 7, which means there is no need to neutralize the already neutral solution. Check with your local water treatment facility and dispose of according to local, state, and federal guidelines.

EVAPO-RUST® has an indefinate shelf life* and can be used over and over until it absolutely stops working. Only water is lost to evaporation. EVAPO-RUST® has a tremendous work load. One gallon can remove 1/2 pound of pure dry rust. Rust is about 1/17 the weight of iron by volume, which means its workload is substantial. On average, one gallon de-rusts up to 300 pounds of light to moderately rusted steel. As the iron is removed from the iron oxide, carbon from the rust is released. Some parts may have a black film after using EVAPO-RUST®. High carbon steel and tool alloy steel items, when de-rusted, will have a darker appearance. The carbon can be removed simply by wiping with a cloth when rinsing with water. The more you de-rust, the blacker the solution becomes. EVAPO-RUST® is spent when it is pitch black and no longer performs.

*Shelf life is for un-opened product. Once opened, The life of the bath will vary due to biodegradability (bacteria introduced into the solution



Evapo-Rust gallonThere is a reason the other rust removers compare themselves to Evapo-Rust®; it's the real deal, accept no substitutes.

credit cards picturepaypal logoGSA Advantage Logo

FREE Shipping to lower 48 states!
55 Gallon Drums and 275 and 330 Gallon Totes are only shipped to Commercial Business locations. We will not ship drums or totes until the address has been verified as a commercial business address. If you require delivery to a residential address (or farm), please call 800-460-2403.

3 gallon with dip basket shown at right.

2 Gallons ER, Get 1-32Oz. Rust Bandit FREE.
$ 57.90
1 Gallon
$ 28.95
3 Gallon with dip basket
$ 64.95
5 Gallon
$ 99.00
35 Gallon
$ 679.95
55 Gallon
$ 795.00
Delivery - Check All That Apply
Commercial Delivery - Add $0
Residential Delivery - Add $75
Lift Gate Required - Add $125


GSA Advantage LogoGSA Contract # GS-07F-0341N


National Stock Numbers (NSN's):

  • 4 x 1 Gallon: 6850-01-498-3625
  • 5 Gallon Pail: 6850-01-498-3610
  • 55 Gallon Drum: 6850-01-498-3606



link to home page link to Orison links page link to products page link to contact page link to Orison search page