Corrosion

Corrosion is a process in which materials undergo unwanted reactions with substances from their environment. These reactions can affect the structure and the properties of the materials.

Non-noble metals are particularly susceptible to corrosion, especially when they come into contact with oxygen and water. This often forms oxide layers on the surface of the metal, which can impair its integrity. This process is known as "rusting" in the case of iron and steel.

In contrast, plastics tend to corrode only on contact with specific chemicals. These chemicals can attack the molecular structure of the plastic and weaken or even destroy it. It is therefore important to protect plastics from such aggressive substances in order to preserve their service life and performance.