Alkyd-based paints are being used for the protection of metals on account of their versatile properties. When the objects painted with them are exposed to different environments, destructive forces affect the paint films resulting in their premature failure. Thus the performance of the coatings over a period of time is difficult to predict from their properties initially measured according to standard specifications, as the paint films do not retain these properties during ageing. It has been observed that even for a system consisting of the same binder and pigemnt, the properties are affected to different degrees during ageing depending upon the level of the pigmentation. In the present work, the effect of ageing of alkyd-Ti0₂ paint films of different PVCs (pigment-volume concentrations) on their adhesion, tensile strength and percent elongation has been studied when exposed to ambient indoor and outdoor environments.