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2. Primer (paint) - Wikipedia

   en.wikipedia.org/wiki/Primer_(paint)

   Primer (paint) A water-based primer, used primarily on wood. 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. [1]

3. What Is Paint Primer and Is It Actually Necessary? - AOL

   www.aol.com/lifestyle/paint-primer-actually...

   Primer is basically just paint that's (typically) untinted, and it's applied to walls before the paint color of choice is. The texture is usually thicker than traditional paint to smooth out the ...

4. Stain-blocking primer - Wikipedia

   en.wikipedia.org/wiki/Stain-blocking_primer

   Stain-blocking primers are used to cover stains such as watermarks, nicotine (actually tar), markers, smoke, and prevent them bleeding through newly applied layers of paint. They also provide adhesion over problematic surfaces, giving better film leveling, and durability. Commonly used stain-blocking paints include acrylic and alkyd .

5. Gesso - Wikipedia

   en.wikipedia.org/wiki/Gesso

   Gesso ( Italian pronunciation: [ˈdʒɛsso]; ' chalk ', from the Latin: gypsum, from Greek: γύψος ), also known as "glue gesso" or "Italian gesso", [1] is a white paint mixture used to coat rigid surfaces such as wooden painting panels or masonite as a permanent absorbent primer substrate for painting. It consists of a binder mixed with ...

6. Zinc chromate - Wikipedia

   en.wikipedia.org/wiki/Zinc_chromate

   Zinc chromate, Zn Cr O 4, is a chemical compound, a salt containing the chromate anion, appearing as odorless yellow powder or yellow-green crystals, but, when used for coatings, pigments are often added. [2] [3] [4] It is used industrially in chromate conversion coatings, having been developed by the Ford Motor Company in the 1920s.

7. Shellac - Wikipedia

   en.wikipedia.org/wiki/Shellac

   Shellac is an odour and stain blocker and so is often used as the base of "all-purpose" primers. Although its durability against abrasives and many common solvents is not very good, shellac provides an excellent barrier against water vapour penetration. Shellac-based primers are an effective sealant to control odours associated with fire damage.