Is primer necessary before applying paint?

Primer is highly recommended for achieving a smooth, durable, and long-lasting paint finish. While primer may sometimes be skipped during simple repainting with flat (matte) paint on walls that are already in good condition, using primer is always the best practice for professional results. Primer should never be skipped in the following situations: 1. Fresh painting on new walls or drywall 2. When using gloss or high-sheen paints 3. During drastic colour changes (dark to light or light to dark) 4. On repaired, patched, or damaged walls (peeling or flaking paint) 5. When painting wood or metal surfaces Applying primer improves paint adhesion, enhances colour uniformity, prevents patchiness, and increases overall durability. For the best interior and exterior painting results, a properly prepared and primed surface is essential.