the time a raw material or semi-finished product retains its processing properties after final preparation (mixing of components, adding of catalysts, etc.)
The time interval following the addition of an accelerator before chemically curing material will become too viscous to apply satisfactorily. See Shelf Life. 
Amount of time after mixing a two-part paint system during which it can be applied.
Amount of time after mixing a two-part paint system during which it can be applied.
The period of time after the mixing of reactive components of a multi-component paint system, during which the mixed paint can be used without detriment to it`s application properties or ultimate performance.
Length of time in which a catalyzed thermosetting resin retains sufficiently low viscosity for processing.
Amount of time after mixing a two-part paint system during which it can be applied.