The maximum allowable time the adhesive components should be stored at a given temperature before use.

The usable storage time of a material. Most adhesives have a shelf-life of 6 to 12 months. The shelf-life of an adhesive may be increased by refrigeration and is usually shortened by exposure to heat.

Storage life. The period of time during which a product can be stored under specified conditions and still remain suitable for use.

Used in the glazing and sealant business to refer to the length of time a product may be stored before beginning to lose its effectiveness. Manufacturers usually state the shelf life and the necessary storage conditions on the package.

The time that an ink will keep in good workable condition when stored in the original sealed containers under normal storage conditions.

The period of time during which a dietary supplement remains sufficiently potent to be effective. The expiration date on a product label should indicate the end of this time period.

Knowledge is perishable. Some suggest it be labeled with pull-dates, like cartons of milk. (And others point out that spoiled milk may have been put in the eLearning bottle to being with.)