What is the recommended method for applying primer?

Applying primer effectively is crucial to ensure that the subsequent layers of paint adhere well and provide a uniform finish. The recommended method of using a roller followed by a brush combines the advantages of both application techniques.

Using a roller allows for quick coverage over large areas, which is efficient for flat surfaces. Rollers can hold a significant amount of primer, ensuring that you can apply an even coat across wide expanses. However, rollers may miss corners or edges where precision is essential.

This is where the brush comes into play. After using the roller, going over the edges, corners, and any detailed areas with a brush ensures that every part of the surface receives an adequate primer layer. This two-step process promotes a smooth, consistent base for the topcoat, enhancing adhesion and overall appearance.

In contrast, other application methods such as using a sponge might not provide an even spread or adequate coverage, while spraying can result in overspray and is less controlled in certain situations. Using brushes alone is labor-intensive and may not ensure even coverage over larger areas. Therefore, the combination of roller and brush is the most effective method for applying primer.