What is likely to happen if a painting surface is not adequately prepared?

If a painting surface is not adequately prepared, defects such as blistering and peeling are likely to occur. Proper surface preparation is crucial for ensuring that the paint adheres well to the substrate. If contaminants such as dust, grease, or previous coatings are present on the surface, they can prevent the new paint from forming a strong bond with the substrate. This can lead to compromised adhesion, where the paint may lift away from the surface, forming blisters or peeling over time.

Additionally, without proper preparation, the texture and porosity of the surface can affect the way the paint is applied and how it performs once dry, resulting in an unsatisfactory finish. Therefore, ensuring that the surface is clean, dry, and adequately primed before painting is essential for the longevity and quality of the coating.