Checking - What is checking?

Definition of CHECKING:

The presence of small, thin cracks in a coating, adhesive, or plastic face material. This can be caused by surface stress created by shrinkage in the surface itself or in an adjacent layer; this shrinkage is usually caused by a layer drying too quickly or by environmental factors including temperature, humidity, and exposure to UV light.

Here is the Harvard-style citation to use if you would like to reference this definition of the word checking:
Label Planet (2020) What is checking? | Checking Definition. Available at: https://www.labelplanet.co.uk/glossary/checking/ (Accessed: January 1, 2023).