Primer (paint)

A primer (/ˈpraɪmər/) or undercoat is a preparatory coating put on materials before painting. Priming ensures better adhesion of paint to the surface, increases paint durability, and provides additional protection for the material being painted.

This article is about a generic preparation coating used for painting. For preparation of the surface for pictures, see Ground (art), Gesso, and Sizing.
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