I can see the surface through the paint; the coat is not opaque enough to hide it fully.

What is it?

Poor hiding is when the paint does not completely cover or hide the surface on which it is applied.

What are the possible causes?

  • The paint is of low quality or contains low hiding pigments.
  • The tools are low quality or you use the wrong roller cover.
  • Using the wrong combination of tinting base and tinting colour.
  • Using a paint with poor flow or levelling.
  • Using a paint that is much lighter than the substrate.
  • Applying the paint over a greater surface area than recommended (higher spread rate).

How can I fix this problem?

  • Use a high quality topcoat with better hiding and flow.
  • Use the best tools and recommended roller nap.
  • Use the correct tinting base.
  • If the substrate is darker, coat it with a wallboard sealer undercoat first.
  • If you’re using a low hiding organic paint, apply an undercoat.