EnglishPolish

Anti-corrosion additives

Description

Anti-corrosion additives are corrosion inhibitors designed to protect metal surfaces against instantaneous and long-term degradation when in contact with aggressive media. During operation, engines, pipelines and cooling systems are constantly exposed to water, antifreeze, metalworking fluids and temperature fluctuations, which creates a favourable environment for electrochemical corrosion.

The additives reliably protect all major types of metals: steel, brass, copper, aluminium, solder and white leaded tin. The mechanism of action is based on the formation of a stable protective film of molecular thickness on the metal surface, which suppresses cathodic and anodic reactions and prevents contact with oxygen and aggressive ions, without changing the composition or fluidity of the working liquid.

Advantages

  • Effective protection of multi-metal systems — a single additive simultaneously prevents corrosion of steel, brass, copper, aluminium, solder and white leaded tin, which is especially important for internal combustion engines and heat exchangers.
  • Stability in liquid media — fully soluble in antifreeze, heat transfer fluids, metalworking fluids and water; does not precipitate and does not clog injectors or cooling system channels.
  • Long-term inhibition — forms a stable adsorbed layer on the metal surface that retains its protective properties over a wide range of temperatures and flow rates.
  • Low working concentration — effective at small dosages, making it cost-efficient for large volumes of technical fluids.
  • Free from aggressive components — contains no nitrites, amines, phosphates or other substances that could cause biofouling or chemical decomposition of the coolant.

Applications

  • Protection of cooling systems of internal combustion engines (cars, trucks, locomotives, marine engines).
  • Corrosion inhibition in closed heating circuits and heat exchangers operating with water and glycol-based solutions.
  • Addition to metalworking fluids (MWF) for machining.
  • Preservation of pipelines and tanks during hydrotesting and temporary storage.
  • Anti-corrosion protection of equipment in the chemical and oil and gas industries that comes into contact with aqueous and mildly aggressive media.

FAQ

The additive is introduced directly into the working fluid (antifreeze, coolant, MWF) and circulates with it through the system. Inhibitor molecules adsorb onto the metal surface, forming an invisible protective film just a few molecular layers thick. This film blocks the access of oxygen and aggressive ions to the metal, suppressing the electrochemical reactions that cause corrosion. Unlike paint coatings, the additive does not change the colour or transparency of the fluid, does not increase its viscosity, and requires no special surface preparation.

Yes, they are specifically designed for such applications. A modern engine or heat exchanger contains steel, aluminium, copper, brass and solder simultaneously. Common inhibitors may protect one metal but cause corrosion of another. This additive is specially balanced for multi-metal systems and provides an equal degree of protection for all the listed materials without the risk of galvanic corrosion.

The additive can be introduced both into fresh antifreeze or coolant and into an already operating fluid. If the old fluid is heavily contaminated with corrosion products, it is advisable to flush the system first. In all other cases, the inhibitor distributes uniformly throughout the volume and begins protecting the surface immediately after circulation starts.