Antistatic Coatings have a triboelectric effect in which electric charge is build-up when two dissimilar materials come into contact

 

Antistatic coatings are meant to resist moisture and corrosion of metal surfaces. The basic component of such coatings is a hard, solid and continuous layer of an antistatic polyurethane, which is then dyed black, silver, bronze or titanium. The color selected must be compatible with the base material that is used for the application. There are also coatings which provide protection against oil, grease, and other liquid penetrations.

Most commonly applied in industrial applications, Antistatic Coatings provide maximum resistance to moisture. This is achieved by a combination of various physical and chemical properties. One of the physical properties of antistatic coatings is electrostatic charge, which is provided by the various electrostatic discharge (ESD) characteristics of the coating. Antistatic coatings are very effective for protecting steel structures from hazardous conditions such as high temperature, corrosive air, salt water, and other liquids. Another important property is the effect on the surface resistance of the materials when a direct current (DC) is applied across the surface. Other important properties include thermal resistance, chemical resistance, and electrical insulating properties.