Why does Valspar paint peel?

Why Valspar paint peels can be due to application issues, surface preparation, or environmental factors rather than brand alone, as any paint can peel if conditions are poor. Common reasons Valspar paint peels include painting over dirty, greasy, or glossy surfaces without cleaning and sanding, so paint cannot adhere properly. Painting over damp or moist surfaces, or high humidity during application, traps moisture under film causing peeling. Applying paint too thickly in one coat, or recoating too quickly before first coat dries, can cause poor adhesion and later peeling. Using interior paint on exterior surfaces or vice versa leads to failure. Not using primer on bare wood, drywall, or previously oil-based painted surfaces causes Valspar latex paint to not bond and peel. Extreme temperature changes and direct sun cause expansion and contraction leading to peeling, especially on exterior. Low-quality or expired paint or not stirring well can cause issues. Valspar itself is generally decent quality, but lower-end Valspar 2000 may have less adhesion than premium lines. To prevent peeling, clean surface, sand glossy areas, prime bare or problematic surfaces, ensure dry conditions, apply thin coats, and follow dry time recommendations.