
It's Okay to Skip the Primer When You Paint
The article discusses the efficacy of self-priming paints, asserting that in most cases, a separate primer is no longer necessary. This contradicts the traditional approach where contractors typically apply a primer followed by two coats of paint to seal the surface and improve adhesion. The debate arose approximately a decade ago with the introduction of self-priming paints, which combine the functions of primer and paint into a single product.
Consumer Reports, through its extensive testing, has determined that modern self-priming paints perform effectively. The organization's paint expert, Rico de Paz, states that these paints have advanced to a point where they eliminate the need for a primer, whether the surface is a previously painted wall or new construction. He also addresses the common misconception that using an inexpensive primer before a single coat of good paint is more cost-effective. De Paz clarifies that primers do not offer the same hiding capabilities as self-priming paints. Therefore, if a wall is smooth and a similar or darker color is being applied over a light base, one coat of a high-quality self-priming paint designed for excellent hiding will suffice.
The testing methodology employed by Consumer Reports involves evaluating nontinted base paints for their ability to cover dark colors and resist stains. For the coverage test, a consistent coat of paint is applied to black-painted cardstock. After drying, a colorimeter measures the paint's effectiveness in concealing the black base. This process is repeated twice per sample, and the results are averaged.
For stain resistance, paint is applied to a plastic panel and allowed to dry. Testers then apply two types of stains—coffee and a soot-like substance—and let them dry. Following this, the painted panels are washed, and a colorimeter is used to measure the color of the cleaned areas. The closer these measurements are to the original paint color, the higher the paint's stain resistance. Based on these rigorous tests, Consumer Reports identifies top-performing self-priming paints that do not require an additional primer. The article concludes by listing five such paints in alphabetical order and directs readers to more detailed buying guides and ratings, including brands like Behr, Benjamin Moore, Kilz, PPG, Prestige Paints, and Valspar.
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