When using a buffer, what is the best practice to prevent paint burns?

Directing the rotation of the pad off the panel while using a buffer is the best practice to prevent paint burns. When the pad is angled away from the surface being worked on, it minimizes the risk of generating excessive heat and friction that can lead to burning the paint. This technique allows for smoother transitions around edges and reduces the likelihood of leaving the buffer in one spot for too long, which can accelerate wear on the paint.

Using a circular motion, applying constant pressure, or starting with high-speed settings could contribute to uneven polishing, increased heat buildup, or even damage to the paint surface. These methods do not provide the same level of control and safety as ensuring the pad is directed off the panel. Thus, maintaining the correct angle and motion while buffing is crucial for achieving a high-quality finish without compromising the integrity of the paint.