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How to Fix & Prevent Poor Paint Sheen Uniformity

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Blue painted wall showing poor sheen uniformity

               Blotches and uneven sheen due to poor
                                paint application
                     (Photo: The Paint Quality Institute)

Poor sheen uniformity leads to shiny spots or dull spots (also known as "flashing") on painted surfaces.

Use the following preparation and painting techniques to avoid dull or shiny wall spots and patches.

What Causes Poor Paint Sheen Uniformity?

  • Unevenly spreading the paint as you apply it
  • Failing to maintain a wet edge, which can lead to lapping
  • Not properly priming a porous surface, or a surface with variable porosity

How to Prevent Poor Paint Sheen Uniformity

  • New substrates should be primed and sealed before applying the top coat to ensure a uniformly smooth surface. Without the use of a primer or sealer, a second coat of paint will more likely be needed to produce a uniform sheen.
  • Make sure to apply paint from "wet to dry" to prevent lapping.
  • Applying an additional coat of paint will even out sheen irregularities.

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