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Rust Remover For Metal | How To Remove Rust

Heavy duty Industrial Rust Removers From Metal Surfaces | Steel Rust Removal Products | Scale Removers | Paint Safe Rust Remover Alkaline Cleaners


half rust half protected


How To Remove Rust and Corrosion Inexpensively, Effectively, Easily and Safely While Adding Corrosion Protection

Our heavy duty rust removers, metal conditioners and paint strippers are biodegradable and non-polluting when compared to other industrial products—eliminating and/or reducing virtually all waste disposal problems. Corrosion is a persistent problem that must be carefully handled in a step-by-step process. Cortec’s environmentally friendly products make it easy to clean metal, remove rust, condition and prepare metal for temporary or permanent coating and packaging. Cortec Surface Preparation products also add VCI corrosion protection.



Step One - Remove Oil Greases and Soil

Cortec® VpCI®-411 & VpCI®-411 Gel Cleaner Concentrate



Cortec®’s VpCI®-411 concentrated cleaner is biodegradable, organic and made from natural solvents.This heavy-duty, versatile cleaner can be used in a variety of household, commercial and industrial applications i.e., adhesives and greases. VpCI®-411 is effective on a broad range of metal surfaces, especially those susceptible to deterioration in an alkaline environment. This product not only inhibits corrosion of freshly cleaned surfaces, it is safe to the touch and has a fresh lemon scent.


Cortec® VpCI®-414 Cleaner Concentrate

Cortec®’s VpCI®-414 is a non-toxic, biodegradable, water soluble cleaner concentrate.This heavy-duty temporary coating and wax remover is extremely effective in the removal of dirt, oils and greases or other cosmoline-like products.As a viscous liquid, VpCI®-414 is ideal for under-hanging and vertical applications. After rinsing with water,VpCI®-414 will provide multimetal corrosion protection for 24 to 48 hours.

Cortec® VpCI®-415/416/417/418/419 Cleaners and Degreasers

Cortec®’s VpCI®-415/416/417/418/419 products are heavy-duty cleaners and degreasers which provide the first step needed in preventing rust and corrosion. Unlike many industrial cleaners, VpCI®-415/416/417/418/419 are non-toxic, non-corrosive, non-flammable cleaner that also provide multimetal corrosion protection. VpCI®-415 offers unique flash corrosion protection and is formulated to meet the requirements for cleaning and corrosion protection of aircraft. VpCI®-415 conforms to MIL-PRF-87937C. VpCI®-416 is a liquid, water-based, environmentally friendly and nitrite-free product.The low foaming VpCI®-417 and 418 powders are excellent for power washing equipment and agitation tanks.VpCI®-419 is a liquid chemical concentrate that is ideal for low foaming floor cleaning applications.

Cortec® Corwipe® 300 and 500 Multipurpose Wipes


Multipurpose wipe cleans while applying a corrosion inhibiting layer to multimetals. Removes grease, oil and light rust. A must for any tool kit. This wipes a treated with a water based cleaner with temporary rust preventative additives. It is specially useful for smaller scale parts cleaning prior to the use of VCI rust preventative products. Corwipe® 500 is designed to clean, protect and maintain products, components or assemblies such as:

• Machined parts coated with waxes or greases prior to assembly:
• Static sensitive equipment
• Manual and power tools
• Aircraft and satellite components and assemblies
• Communications equipment
• Computer data storage devices
• Computer monitors and keyboards, TV screens, CD players, equalizers, stereo speakers, etc.
• PC boards, terminal blocks
• Power connections, audio connectors
• Military equipment, ammunitions and missile components



Step Two - Remove Old Paint

Cortec VpCI®-432/433 Paint Strippers & Cleaners

Coating Removal

Cortec®’s VpCI®-432/433 Paint Strippers and Cleaners are environmentally safe for removing paint from metal, wood and concrete, as well as providing protection against corrosion, flash rusting and discoloring of stainless steel, iron, copper, aluminum and brass.The heavy-duty formulation, which removes paint in three to thirty minutes, also effectively removes graffiti from concrete.These paint strippers, developed with maximum user safety in mind, do not contain many of the chemicals — such as methylene chloride, chlorinated solvents, methanol, toluene and acetone — found in other competing products. Cortec®’s VpCI®-432/433 Paint Strippers are formulated to remove urethanes and difficult-to-remove epoxies.They can handle the toughest coatings, yet are very safe compared to heavy-duty paint strippers. Works for removing Epoxy Coatings as well!

Step Three - This Is How You Get Rust Off Metal

Cortec® VpCI®-422 Liquid & VpCI-423® Gel Organic Rust Remover and Cleaner | Paint Safe | Industrial Grade


Cortec’s VpCI®-422 and VpCI®-423 are non-polluting heavy duty rust removal products which can be easily and safely applied to most metals (steel rust removal is the most common application) .These products are based on a new chemical breakthrough to remove rust from metal and tarnish from steel, cast iron, copper, brass and chrome. Unlike other products currently available, these formulations are not based on hazardous acids, and when used correctly will not harm human skin or adversely affect most paints, plastics, wood, textiles, ceramics or rubber.

VpCI®-422 and VpCI®-423 are completely organic, 100% biodegradable and don't require special disposal for typical use. It is especially helpful for outdoor and marine applications where chemical waste disposal can be a problem. In rare situations, waste treatment may be required if a sufficient quantity of pollutants are introduced into the chemical solution. Both VpCI®-422 and VpCI®-423 are awarded with a USDA Certified Biobased Label.

Appearance: Dark amber to brown liquid

Non-volatile Content: 28-33%

Odor: Light

pH: 1.7–2.5

Weight per Gallon: 9.3–9.6 lb/gal (1.12–1.15 kg/l)


Available in 5 gallon (19 liter), 55 gallon (208 liter) drums, totes and bulk.

Store product in a heated warehouse to avoid freezing.

Minimum storage temperature: 32°F (0°C)

Maximum storage temperature: 120°F (49°C)




Cortec® Ecoclean® Rust and Scale Remover

EcoClean® Rust and Scale Remover is a heavy duty biodegradable scale and rust remover. It is one of the fastest acting products on the market for dissolving heavy scale, corrosion, and naturally occurring oxides off metals. It is effective and safe rust removal on cast iron, carbon steel, stainless steel, copper, aluminum, magnesium, and their alloys. Powerful corrosion inhibitors contained in the scale remover protect treated metals from flash rust. EcoClean® Scale Remover is simple to use and non-toxic, providing one safe remover for all your descaling and de-rusting needs.

EcoClean® Scale Remover is awarded with a USDA Certified Biobased Label (USDA#5564). It is easily biodegradable.

For water-soluble pouch form, use one pouch for every 4 gallons of water. Simply throw the pouch in the water. It will dissolve upon entering water and release the scale remover inside. It is particularly convenient for rust removal and scale removal where water circulates, as in many heatexchanger or pipe systems. For powder form, add 7% (by weight) in water. For ready-to-use liquid form, add 1 part product to 2 parts water.


EcoClean® Rust and Scale Remover water soluble pouch is available in 2.2 lb bags, 4 bags per carton.

EcoClean® Rust and Scale Remover powder is available in 5 lb (2.3 kg), 50 lb (22.7 kg), and 100 lb (45.4 kg) bags.

EcoClean® Rust and Scale Remover liquid is available in 5 gallon (19 liter) pails, 55 gallon (208 liter) drums, liquid totes, and bulk.

Minimum storage temperature: 32°F (0°C) Maximum storage temperature: 120°F (49°C)



CorrVerter® - Single Component Water Based Rust Converter Coating


When removing rust may proove to be inconvenient, CorrVerter® is a fast drying, water-based one coat system (Primer Coating) rust converter that converts rusted surfaces to a hydrophobic passive layer and prevents further rusting thru the unique formulation of chelating agents and PVC resins. It provides long term corrosion protection by itself or by topcoating for extended performance.
Application: Substrate should be free of grease, oil, dirt, fingerprints, drawing compounds, rust inhibitors, or any other surface contamination that could affect adhesion. For production line applications, use VpCI®-440 or similar phosphatizing pre-treatment.

Volume Solids 34.50% =/- 2%
Gloss (ASTM D532) 15-25
VOCs (ASTM D3960) 0.1 lbs/gal (12 g/L)
Viscosity 7,000-20,000 Centipoise
Pencil Hardness (ASTM D3363) F
Spreading Rate 553 sq.ft/gal @ 1.0 mils DFT
(13.57 sq.m/L @25 μm)
Weight per Gallon 11.59 lbs/gal (1.39 kg/L)
Flash Point >200 °F (93 °C)
Recommended DFT 3.0-5.0 mils (75-125 μm)
Recommended WFT 8.7-14.5 mils (217.5-362.5 μm)
Dry to Touch 2-3 hrs
Dry to Handle 4-6 hrs
Recoat Time Dry to touch - 72 hrs
Force Dry 15-20 min @ 150 °F (65 °C)
Full Cure 3-7 days
Salt Spray (ASTM B117) 500 hrs
Humidity (ASTM D1748) 250 hrs
Adhesion (ASTM D3359) 5B
Flexibility (ASTM D522) ½" mandrel (1.27 cm)

CorrVerter® is available in 1 gallon (3.8 liter) and 5 gallon (19 liter) pails.

Keep product from freezing.

To ensure best product performance, store in original packaging, indoors, and out of direct sunlight at 40-100 °F (4- 38 °C).

Complete Cortec® Surface Treatment process prior to Coating

surface prep



Cortec® VpCI®-440

Coating Adhesion Improver

VpCI®-440 is a water-based surface pretreatment for steel, iron, aluminum, brass, copper, zinc and other metals. VpCI®-440 can replace phosphatizing and chromating systems. VpCI®-440 will help Coatings adhere better to hard to adhere to surfaces, such as increasing the adhesion of a powder coating to aluminum.

Dip the parts for 5 minutes in a tank of diluted VpCI®-440 and allow to dry. Once parts are dry to the touch, usually within 5-10 minutes, the parts can be handled and painted.

Appearance Clear to hazy liquid pH 10-11
Density 8.0-8.5 lb/gal (0.96-1.02 kg/l)
Temperature Range 50-212°F (10-100°C)

• adhesion promotion 0.1-0.25% in water
• stand alone protection 1-10% in water

Dry To Touch 5 minutes
Dry to Handle 10 minutes


Cortec® Logo is registered trademark of Cortec® Corporation. VpCI®, MCI®, EcoClean®, EcoAir®, BioCorr®, Boiler Lizard®, BioCorr® and Ecoline® are registered trademark of Cortec® Corporation