Shake the can vigorously for a couple of minutes before spraying till the bearing noise from inside the container is audible. Repeat before every application. Spray onto a clean, dry and degreased surface. Only a thin film of this lubricant is required. Allow solvents to evaporate. Spray from a distance of 20-30 cms. Repeat if necessary. For cleaning the valve diptube after spraying, invert the can and depress the actuator button for a few short bursts till only the clear propellant comes out.