What is a common reason for sags and runs in paint?

Sags and runs in paint are commonly caused by poor spray gun skills. When an operator does not have the proper technique in controlling the spray pattern, distance, or speed, it can result in the paint being applied too heavily in one area. This excessive application leads to an uneven surface where the paint collects and runs down, creating sags and runs.

Understanding the importance of spray technique is vital for producing a smooth and even finish. Factors such as a steady hand, consistent movement, and understanding how to manipulate the spray gun contribute significantly to the final appearance of the paint job. Proper training and practice in spray gun handling can greatly reduce instances of sagging and running paint, ensuring a high-quality finish.

The other choices would not contribute to the occurrence of sags and runs; for example, using high-quality paint often enhances the finish instead of detracting from it. Correct gun pressure settings and well-practiced application techniques typically lead to a better overall outcome; therefore, they are not associated with painting defects like sags and runs.