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Cortec VpCI® 427 Inhibitor

Cortec VpCI® 427 Inhibitor

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Revitalise your aluminium components with VpCI 427. This inhibitor is an industrial-strength concentrate meticulously crafted for the removal of oxide scale from aluminium alloy parts and equipment.

This innovative solution also serves as a preparatory step for subsequent processes like anodising, electroplating, or coating, ensuring optimal surface conditions.

Unlike traditional approaches that rely on mineral acids and caustic soda, VpCI 427 stands out with its superior efficacy on aluminium substrates. Conventional aluminium cleaners often fall short in delivering desired results and pose challenges such as scale formation upon heating, as well as environmental hazards linked to their usage.

VpCI 427 boldly addresses these shortcomings by not only dissolving the aluminium oxide film on surfaces but also preventing the reformation of the oxide scale. Furthermore, its environmentally conscious formulation underscores its commitment to sustainable practices, making it a responsible choice for your cleaning needs.

Typical Uses

Preservation of Aluminium Components:

VpCI finds frequent application in safeguarding aluminium structural elements, automotive parts, and castings. It effectively protects against corrosion during storage and transportation.

  • Aerospace Preservation: The formulation is extensively employed to shield aircraft parts and components against corrosion, ensuring their integrity and performance over time.
  • Surface Preparation for Finishing: VpCI® 427 is utilised in the preparation of aluminium surfaces prior to processes like anodising, painting, and electroplating. It aids in enhancing the adhesion and quality of the finish, contributing to a longer-lasting appearance and functionality.
  • Marine Industry: VpCI® 427 can be used to protect aluminium components in marine environments, including boat parts, ship structures, and offshore equipment. The formulation helps prevent corrosion caused by exposure to saltwater and humid conditions.
  • Electronics Manufacturing: The formulation can be employed to safeguard aluminium components used in electronics manufacturing. It can prevent corrosion during storage and transportation of electronic devices and components.
  • Automotive Industry: Apart from automotive parts, VpCI® 427 might also find applications in protecting other aluminium components used in vehicles, such as heat exchangers, radiators, and engine parts.
  • Industrial Equipment: VpCI® 427 can be utilised to preserve various aluminum components in industrial settings, such as machinery, tools, and equipment that are susceptible to corrosion due to exposure to environmental factors.
  • Renewable Energy: Aluminium components used in solar panels, wind turbines, and other renewable energy systems can also benefit from the corrosion protection provided by VpCI® 427.
  • Construction: The formulation could potentially be used to protect aluminium architectural elements, structural components, and building materials during construction and storage.
  • Electroplating Industry: In addition to surface preparation, VpCI® 427 might also have applications in preventing corrosion during the electroplating process, ensuring that the plated layer adheres properly to the aluminium substrate.
  • Aviation Maintenance: While aerospace preservation was mentioned, VpCI® 427 might also be used in the maintenance and repair of aircraft to prevent corrosion on replaced or repaired aluminium parts.
  • HVAC (Heating, Ventilation, and Air Conditioning): Aluminium components used in HVAC systems, such as heat exchangers and coils, could benefit from the corrosion protection provided by VpCI® 427.

It's important to note that the suitability of VpCI® 427 for these additional applications would depend on the specific properties of the formulation and the requirements of each industry.


  • Effective Acid and Caustic Soda Replacement: VpCI® 427 presents a groundbreaking advancement by offering a highly effective alternative to traditional mineral acids and caustic soda. This unique attribute eliminates the need for hazardous chemicals in industrial processes.
  • Scale Formation Resistance: One of the key challenges in industrial operations is the formation of scale within equipment and pipelines. VpCI® 427 addresses this issue with unparalleled efficiency. By preventing scale formation, this solution contributes to the longevity and optimal functioning of equipment, minimising downtime due to maintenance and cleaning procedures.
  • Eco-Friendly Formulation: In an era where environmental sustainability is paramount, VpCI® 427 takes a prominent stance as an environmentally acceptable solution. Its formulation prioritises ecological considerations, reducing the impact on ecosystems while still delivering exceptional performance. This aligns with modern industrial trends that emphasise responsible practices and reduced carbon footprints.
  • Versatility in Applications: VpCI® 427's adaptability across various industrial sectors is a testament to its versatility. Whether employed in manufacturing, chemical processing, or other industrial applications, this solution consistently delivers results. Its compatibility with a wide range of materials and processes makes it an asset in diverse contexts.
  • Holistic Protection: Beyond its specific features, VpCI® 427 offers a comprehensive approach to industrial maintenance. By replacing traditional chemicals and inhibiting scale formation, it contributes to an overall reduction in system corrosion. This results in extended equipment lifespan, increased operational efficiency, and reduced operational costs.


The duration of immersion in the solution will vary according to the corrosion removal requirements. To enhance protection, VpCI 427 can be washed away using water or the Cortec® VpCI 410 series. For achieving a polished surface, it is advisable to opt for Cortec® VpCI 426.

Product Specifications (.PDF)

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