Glass Flake Coating

Definition - What does Glass Flake Coating mean?

A glass flake coating is any coating material that is applied to a base material in order to prevent corrosion that has the addition of very small, thin pieces of glass. A glass flake coating can be very thin with thicknesses ranging from 8 microns to less than 1 micron. This type of coating can have superior resistance to gas and liquid permeation.

Corrosionpedia explains Glass Flake Coating

Glass flake coatings are any type of coating that has glass flakes mixed into it. The glass flakes are very fine shards of glass. They have a high aspect ratio, meaning that they are much longer and wider than they are thick. This allows for the stacking of several layers of glass flakes while still maintaining a thin overall coating measuring less than 10 micrometers.

The glass flakes are inert and transparent, allowing them to have little interference with the rest of the coating material. The actual type of glass that is used depends on the application, as each types of glass has its own set of benefits.

A glass flake coating can have many advantages over other types of coatings. Because there are so many tightly overlapping glass flakes in the coating, its ability to resist the permeation of gases and liquids is quite high relative to other types of coatings such as organic resin coatings. Another advantage of glass flake coatings are their ability to resist chemical attack because glass is not reactive to many types of aggressive chemicals. Glass flakes can also be used to improve the mechanical properties of a coating, such as increasing the hardness and imparting some fire resistance.

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