Definition - What does Spray Life mean?
Spray life refers to the totality of time beginning from the initial preparation and mixing of a coating until the point where such a coating losses its viability. Knowing the spray life is important because the coating may not be able to provide adequate protection against corrosion when applied to a metallic surface beyond its spray life.
Corrosionpedia explains Spray Life
Spraying is a method used to apply coatings to a metallic surface. Some coatings consist of several fluid components that must be mixed at fixed concentrations to enable full coating potential. Undesirable conditions such as coagulation may occur due to the molecular structures and physical properties of the components. Coagulation makes proper spray application impossible. Therefore, coatings must be applied after initial mixing and before the onset of coagulation and/or fluid separation of the coating's components.