Shake well before use for 1 - 2 Minutes, Surface to be painted must be clean, dry and free from dirt, oil, grease and rust, Apply spray 1 foot away from the surface to be painted. Shake well Can periodically, Apply spray in side to side motion. Spray several thin coats at interval of 5 minutes for best results, After use, turn can upside down and press spray head to clear the paint nozzle for at least 2 - 3 seconds