What is corrosion inhibitor paint & how it works

1. What is corrosion inhibitor paint & how it works? A corrosion inhibitor paint is a chemical solvent-based paint used in a particular environment to lessen the metal corrosion rate subjected to that environment like water or air. Uses They have a wide variety of uses in process, residential, commercial, industrial, marine, farm, and many other environments. They are utilized in reducing anodic corrosion and rusting of metals. This is mostly performed via the metal surface coating using a chromate layer. It is significant to prevent corrosion and rusting of fuel pipelines. Thus, corrosion inhibitors are significant in guarding the pipelines and lessening the accident risks. Metal pipes have a tendency to corrode. Therefore, corrosion inhibitor paints play a good role in securing them as well. Various types Corrosion inhibitors can be classified into 4 types. Cathodic Inhibitor They work to reduce the cathodic reaction or be utilized to precipitate on metal cathodic regions to limit the diffusion to the surface of the corroded metal. Bisulphite and sulphite ions that react with O2 to form sulphates are an example of this variety. Anodic Inhibitor These inhibitors create a thin layer of oxide on the metal surface. The reaction causes an anodic shift, turning the surface into a passivation area. This helps in lessening the metal corrosion. Nitrites, chromates, molybdates, and orthophosphates are some examples. Volatile Corrosion Inhibitor They can be utilized to stop the condenser tube corrosion in your boilers. They are also known as VPIs [vapor phase inhibitors]. They change the pH level of the external atmosphere to reduce acidic conditions and help control corrosion. Hydrazine and morpholine are some typical examples that are utilized to control the condenser pipe corrosion in boilers. Mixed Inhibitors These inhibitors form a thin film on the metal surface. They work to lessen cationic reactions and anionic reactions. This is achieved through the precipitate formation on the metal surface. Phosphates and silicates that are utilized in water softeners to stop water rusting are some major examples.

2. Verdict A corrosion inhibitor paint is a defensive barrier in the form of a film, solid, or fluid that is used on a metal surface to avert corrosion. Due to external factors, the barrier coatings have physical or chemical properties that help prevent material degradation or corrosion reactivity.