Paint & Finishes

Primer

"A preparatory coat applied before topcoat paint to improve adhesion, seal porous substrates, and block stains or tannins. Essential on bare wood, bare metal, and chalky surfaces."

In detail

Exterior primers include oil-based (wood, stain-blocking), acrylic latex (most substrates), and masonry primers (alkaline-resistant). Spot-priming is acceptable for sound existing paint.

Synonyms & Related Terms

Undercoat Base coat

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