What is the recommended method for applying primer before painting?

Applying primer in thin, even coats is crucial for achieving a smooth and professional finish before painting. This method allows for better control over the application, reducing the likelihood of runs or drips that can occur with thick coats. Thin layers ensure that the primer adheres properly to the surface, creating a strong bond that enhances the durability and longevity of the paint. Additionally, applying in uniform layers promotes even drying and minimizes the risk of issues like orange peel texture or uneven coloration upon painting.

This approach also contributes to effective coverage without obscuring surface details, which is especially important when preparing a surface for repainting. In contrast, applying primer only to damaged areas can lead to inconsistencies in appearance and performance, particularly if the non-primed areas are later painted over, as they may not adhere as well as primed areas. Immediate application after sanding might seem beneficial, but it’s essential to ensure the surface is clean and dust-free to achieve optimal adhesion, which can sometimes conflict with the timing implied in that answer. Overall, thin, even coats not only optimize adhesion and appearance but also facilitate the painting process itself.