Which type of issue can arise from excessive overspray?

Excessive overspray during the painting process can significantly lead to increased waste of materials. When paint is sprayed beyond the intended surface area, it results in more paint being used than necessary. This wasted paint not only adds cost to the project but can also contribute to environmental concerns if the overspray settles in unwanted areas.

In addition to waste, excessive overspray can complicate cleanup and may require additional resources to manage the excess paint that misses the target surface. It's also important to note that while the other options may be consequences of poor painting techniques or incorrect application methods, they do not directly address the primary concern of increased material waste stemming from overspray. Therefore, identifying waste due to excessive overspray is crucial in promoting efficiency and cost-effectiveness in painting operations.