Coating - Wikipedia
https://en.wikipedia.org/wiki/Coating
OverviewFunctions of coatingsCoating analysis and characterizationCoating formulationCoating processesSee alsoFurther readingCoatings are not just designed to be aesthetically pleasing and for decorative purposes, but also have other functions. Sometimes a coating can be both decorative and have a specific function. An example would be the coating of a pipe carrying water for a fire suppression system that is coated with a red (for identification) anticorrosion paint to reduce degradation. In fact, most surface coatings or paints are to some extent protecting the substrate e.g. general maintenance …
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