Finishing and polishing

PASSIVATION

The benefits of passivation

Passivation refers to a process in which the surface of a material is treated or coated to prevent or reduce its susceptibility to chemical reactions, corrosion or other forms of degradation. The purpose of passivation is to create a protective layer on the material surface that helps the product to last longer.

The passivation process is of primary importance for the longevity of stainless steel, which removes less noble particles like iron, thus improving resistance and preventing surface corrosion, as it forms a protective layer that constitutes a physical barrier against external agents.

Passivation of stainless steel is a spontaneous process in nature but slow and uncontrolled, so at Posidonia we offer our customers the possibility to passivate anchors, chains, and deck elements quickly and in a controlled manner.

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How passivation is carried out

The passivation process consists of the formation of a passivating and protective film through a chemical treatment.
Before passivation, the anchor, chain, or deck equipment must be washed and degreased so that passivation can act on a surface free of contaminants and create a dense and compact oxide.

Posidonia guarantees

After the treatment, it is possible to verify the effectiveness of the treatment through our passivation test, which also allows for the detection of any contaminations.
Passivation refers to a process in which the surface of a material is treated or coated to prevent or reduce its susceptibility to chemical reactions, corrosion or other forms of degradation. The purpose of passivation is to create a protective layer on the material surface that helps maintain its chemical and physical properties over time.