Definition: Shiny spots or dull spots (also known as “flashing”) on a painted surface; uneven gloss.
CAUSES:
* Applying paint unevenly causes painting, poor sheen uniformity
* Failure to prime a porous surface, or a surface with varying degrees of porosity
* Over-thinning of the paint causes poor sheen uniformity
* Poor application resulting in lapping
* Use of low-quality paint causes painting poor sheen uniformity
PAINTING POOR SHEEN UNIFORMITY SOLUTIONS:
* New surfaces should be primed/sealed before applying the topcoat to ensure a uniform surface.
* Often another coat of paint will even out the sheen irregularities. Make sure to apply paint from “wet to dry” to prevent lapping.
* Use a high-quality water-based enamel paint to avoid painting poor sheen uniformity.