By navigating our site, you agree to allow us to use cookies, in accordance with our Privacy Policy.

Cortec Engine Testing Corrosion Solution Gains Acceptance

Cortec Engine Testing Corrosion Solution Gains AcceptanceThe latest corrosion solution by Cortec for large engine testing and cold storage has been adopted by two major offroad engine manufacturers and is gaining ground internationally. In addition to resolving corrosion from residual water, VpCI-649 BD has improved overall protection and is being categorically recommended for adoption by a trusted industry leader.

Challenge of Corrosion After Engine Testing:

Engines are at risk both from flash rust immediately after hot testing and from corrosion during outdoor storage at the dealer. Since it is too difficult and expensive to completely remove water after hot testing, one manufacturer was using a fill and flush procedure to prevent residual water from freezing inside engines during several months of storage in cold regions. Unfortunately, more attention was paid to adding glycol than to monitoring the rust preventative until rust claims started to roll in and raise a clear warranty issue.

Process Improvements with VpCI-649 BD:

Cortec looked at the situation and realized they could make a process improvement by adding VpCI-649 BD to the engine cooling system during the hot test and subsequent glycol fill and flush. This water-based corrosion inhibitor is most often used for hydrostatic testing, leaving behind a protective film that inhibits corrosion in both the contact and vapour phases. That means VpCI-649 BD will protect the surface to which it is directly applied as well as surfaces within the enclosure to which molecules can travel by vapor diffusion. The effect is more comprehensive protection than conventional rust preventatives used in this application.

Widespread Adoption of VpCI-649 BD:

Cortec recommends adding a 2% solution of VpCI-649 BD to the engine coolant system during hot testing. After each fuel is tested in the running system for one hour, the engine can proceed to the fill and flush stage (if the engine is headed to a cold climate), where VpCI-649 BD should be added at 5% to water and glycol for dual freezing/corrosion protection during six months to a year of outdoor storage. One major manufacturer started full-scale testing with these formulas in May 2023. Upon opening the engines after several months of outdoor storage in Germany, they found the internals in exceptional condition compared to their previous experience.

The Culmination of Decades:

The discovery of this solution is the culmination of Cortec’s decades of experience both in rust prevention and engine testing. By taking lessons learned from customer trials, behaviour, and feedback, Cortec has been able to drive process improvements for greater flexibility and effectiveness in engine protection.

Tags

Abdullah Ansari

Journalism graduate with a flair for technology and electric vehicles, dedicated to crafting insightful articles that bridge innovation and communication. Passionate about shaping narratives in the fast-evolving world of tech.

Related Articles

Upcoming Events