What does sanding accomplish during paint preparation?

• A. It adds a protective layer
• B. It smooths the surface and promotes adhesion
• C. It removes old paint completely
• D. It changes the paint color

Answer: (B)

Sanding during paint preparation is crucial because it effectively smooths the surface of the material being painted, which helps to create a more even and uniform base. This process removes imperfections such as dust, dirt, and minor scratches, ensuring that the surface is ready for new paint application. Additionally, sanding creates a slightly rough texture that promotes better adhesion of the new paint to the surface. This enhanced bond is vital for ensuring that the paint adheres properly over time, reducing the likelihood of chipping, peeling, or flaking.

Other options do not encompass the primary purpose of sanding. For example, while it may remove some old paint, it is not specifically designed for that purpose, which can vary depending on the technique and tools used. Similarly, sanding does not add a protective layer or change the paint color; its main role is to prepare the surface for optimal paint application.