PRODUCT SHOWCASE: Cortec Corporation Introduces Breakthrough in Temporary Rust Preventive Technology


Cortec Corporation has developed a water-based rust preventative (RP) that reduces applied cost by 40 percent compared to a bestselling oil-based RP. Cortec’s innovation offers excellent corrosion protection while reducing carbon footprint and cutting common labor or disposal costs associated with traditional RPs.

EcoCorr™ Water-Based Rust Preventative powered by Nano VpCI® is a complete replacement for oil-based rust preventatives (RPs) used for temporary indoor protection of equipment and components. It is convenient to use and easy to clean. When applied to the metal surface by dipping, brushing, or spraying, EcoCorr forms a clear dry film that is suitable for robotic assembly of precision machined components. In most cases, the dry film of EcoCorr does not interfere with use and does not need to be removed, but this can be easily done when required. EcoCorr Water-Based RP is useful for temporary storage of countless metal parts including:

  • Castings, tubular parts, finished parts, and gears
  • Pumps and housings
  • Structural steel, sintered metals
  • Bars and roll stock
  • Precision machined components

Freshly exposed metal surfaces are especially vulnerable to flash rust and corrosion between manufacturing process steps. In order to avoid losses from corrosion, it is important to apply a rust preventative to protect metal parts awaiting the next step of machining, assembly, or shipment. This is typically done with an oil- or solvent-based RP, which can be messy, hazardous to use, and inconvenient to remove.

EcoCorr Water-Based RP improves plant cleanliness and worker safety by eliminating greasy spills, flammable RPs, and hazardous elements such as nitrite, phosphate, and hazardous amines. Special ventilation is not required for application, and labor and disposal costs associated with hazardous oil-residue removal are eliminated. All this can be done at a significant savings of 40 percent lower total applied cost — not to mention time saved between process steps.

Though oil- and solvent-based RPs are commonly relied on for their rust preventive qualities, EcoCorr Water-Based RP offers outstanding performance in an environmentally friendly, easy-to-use alternative. Under ASTM D-1748 testing, during which coated metal panels are exposed to approximately 100-percent relative humidity in high temperatures of 120°F (49°C), EcoCorr Water-Based RP provided more than 800 hours of protection.

EcoCorr Water-Based RP has excellent wetting qualities but dries into a clear film that is stable up to 284°F (140°C). This film can be left on during component assembly, can be coated over with conventional paint systems, and in most cases, can be welded. All these features serve the important role of preventing flash corrosion and extending shelf-life of finished goods in an inconspicuous manner.

Protection is good for up to two years of sheltered/indoor storage of multi-metals, which include: carbon steel, cast iron, stainless steel, galvanized steel, aluminum, and copper.

Cortec has developed an economical, environmentally friendly option for use in industries that manufacture, assemble, ship, or store metal parts. EcoCorr Water-Based RP is easier and safer to use than traditional RPs and offers excellent performance with significant cost savings. These advantages show that EcoCorr Water-Based Rust Preventative powered by Nano VpCI® is not only a complete replacement for oil-based RPs but also is the sensible, economical choice for protecting metal parts against flash rust or corrosion during manufacturing, storage, and shipping.

EcoCorr Water-Based Rust Preventative passes ASTM D-4627 Cast Iron Chip Test, ASTM G-31 Immersion Corrosion Testing, and ASTM D 3359 Measuring Adhesion by Tape Test. It is compliant with NACE RP0487-2000 Selection of Rust Preventives.