What is the Purpose of Paint Primer?

When paint does not have the appropriate primer paint underneath, paint will not dry properly, which will show in the drying process. It will turn out blotchy, lumpy, and uneven with brush marks. If you’re wondering what went wrong, you’re also probably wondering, “What is the purpose of paint primer?”

Primer paint is a preliminary layer of coating that is applied on the materials prior to the paint. Primer is an important part of the painting process, and here are some reasons why:

  • Primer creates a sturdy canvas for the paint.
  • It creates a smooth layer for the paint to bind onto, providing a consistent evenness.
  • Primer enhances the durability and life of paint.
  • It seals the pores in the permeable materials.
  • Primer ensures a proper adhesion of the paint with the surface.
  • Paint primer can correct uneven and flawed surfaces.

Types of Primer

There are several types of primers, including oil, latex, and shellac. Oil-based primer is better for areas that are used frequently, such as doors, windows, and cabinets. It is also good for eroded wood and unfinished wood. Latex primers are best for unfinished dry walls and soft, bare woods as well as galvanized metal. Shellac is very fast-drying and is good for wood and plastic. It is also used to cover smoke and rust.

You should always use primer on these types of surfaces:

  • Patched walls
  • Raw wood
  • Raw drywall
  • Rough surfaces
  • Stained surfaces

Applying paint to unprimed walls and other surfaces may cause peeling and development of cracks. Before applying primer, all surfaces must be cleaned and dried. The use of paint primer can mean the difference between a flawed wall with uneven paint and a beautiful, bright wall of color!