Hiding (Poor)

Failure of dried paint to obscure or hide the underlying color or surface to which it is applied.

Applying too thin of a paint film.
Use of paint with low hiding characteristics.
Use of a paint that is much lighter or darker than the previous coat.
Use of the wrong type or nap size of roller cover. Use of the wrong type or size of brush.
Painting over a porous surface that absorbs the coating.
Poor flow and leveling.
Thinning/reducing the coating.

Follow label and data page directions for the appropriate film build.
Prime the surface with a white primer, the appropriate P-Shade primer for the color, or a primer shaded towards the topcoat color.
Determine the correct roller cover based on the coating being applied and the surface. On smooth surfaces, a mohair, 1/4", or 3/8" roller nap is usually sufficient. On textured surfaces, a 3/4" nap or greater is needed.
Prime porous surfaces before topcoating.
Allow proper drying time before recoating.