Industrial Processes

Oxidation of screws used in outdoor structures, such as bridges and other constructions exposed to adverse environmental conditions, represents a significant issue for structural integrity and safety. This article explores oxidation processes in such environments, the specific causes, available treatments and best prevention strategies.

Physical Vapor Deposition (PVD) is an advanced technology used to apply thin coatings to various surfaces, particularly metals. This technique offers numerous advantages in terms of wear resistance, surface hardness, and aesthetic properties, making it ideal for a wide range of industrial applications.

Metal burnishing is a chemical or electrochemical process used to impart a dark finish, usually black or brown, to metal surfaces. This treatment not only improves the aesthetic appearance of the metal, but also provides some protection against corrosion. It is commonly used on steel, copper, brass and other metal alloys.

Anodizing is an electrochemical process that modifies the surface of metals to improve corrosion resistance, hardness, paint adhesion and aesthetic appearance. In aluminum, anodizing creates a protective and decorative oxide layer. There are various types of anodization, each with specific characteristics, applications, advantages and...

All maritime structures, such as platforms, offshore installations and ocean-going ships, are strongly and constantly affected by abrasion and corrosion. This translates into important investments for the companies that manage them.

Zinc coatings


Zinc coatings are a type of coating that provide corrosion protection to ferrous surfaces. They contain large quantities of zinc metal powder dispersed in poly-siloxane, urethane, epoxy or butyl resins, or in the form of zinc silicate binder (very similar to the sodium silicates of mural paints and mastics, capable of cross-linking in a sort of...

Phosphorus passivators are water-soluble synthetic polymers with phosphorus-based functional groups, suitable for reacting on surfaces (multi-metal) to create passivating nano-coatings capable of promoting paint adhesion and significantly increasing corrosion resistance.

The passivation of stainless steel occurs naturally, when the alloy is in an environment capable of bringing oxygen to the surface of the metal. When oxygen (coming from air, water, an oxidizing agent or other sources) comes into contact with the surface of stainless steel, it reacts with the chromium present in the alloy forming the oxides and...