What is a typical sign that you need to sand the surface before applying another coat of paint?

When preparing a surface for a new coat of paint, one of the most important indicators that sanding is necessary is the presence of imperfections on the surface. Imperfections can include bumps, uneven areas, or texture inconsistencies that may affect the final appearance of the paint job. Sanding these areas helps create a smooth, uniform surface, allowing the new coat of paint to adhere properly and look professional.

Sanding before painting also helps to remove any rough patches that could cause the new paint to apply unevenly or lead to adhesion problems. By addressing these imperfections, you ensure that the paint adheres better and that the final finish is more pleasing to the eye, with less risk of flaking or chipping in the future. Recognizing and rectifying these surface issues is crucial for achieving a high-quality result in painting projects.