Hi Andy, we're sorry to hear about your experience. If the internal temperature of the can is too low, the spray can clump and not work correctly. We would recommend setting the can in warm water for 15-20 minutes, then shake. You should be able to hear the ball inside of the can when the spray is at the right temperature/consistency. For more information, feel free to contact our technical support team at 1-800-729-9029 between 8am and 5pm ET.