What does a "mil" measure in paint technology?

A "mil" is a unit of measurement that specifically refers to one-thousandth of an inch. In the context of paint technology, it is commonly used to assess the thickness of a layer of paint. Understanding the thickness in mils helps professionals gauge the performance and durability of a coating, as thicker applications generally provide better protection and longevity.

In paint technology, it is essential to know the thickness of coatings for various reasons, including compliance with regulations, ensuring adequate coverage, and achieving the desired finish. For instance, different applications or surfaces may require specific thicknesses to achieve optimal results in terms of adhesion, durability, and appearance.

The other options address different aspects of paint technology, such as viscosity, coverage, and reflective quality, but none pertains specifically to the measurement of thickness as effectively as the mil does.