What is a common cause of paint defects during refinishing?

Contamination of the surface before painting is a significant factor that can lead to paint defects during the refinishing process. When a surface is contaminated, it means that dirt, oils, wax, or other substances are present, which can prevent the paint from properly adhering. This lack of adhesion can result in problems such as peeling, bubbling, or uneven texture, ultimately compromising the finish quality.

Ensuring the surface is clean and free of contaminants is crucial for achieving an optimal paint application. This often involves thorough cleaning and preparation steps, including washing, sanding, and possibly using solvents or cleaners designed to remove residues. Without these preparatory steps, even the best paint application techniques may lead to failure in the final finish, underscoring the importance of surface cleanliness in the refinishing process.