Product could be from Rusfre or Seymour Quiet Seal II. We have tested both and found that they are very similar in application and durability.
Prevent rust and corrosion from penetrating and destroying the undercarriage of your vehicle. Spray this rubberized undercoating on your vehicle’s frame and undercarriage panels to help protect them from salt and road debris.
Surface must be clean and dry before applying undercoating. Protect surrounding areas from spray mist by covering with plastic or paper and taping off. For best results, apply when can is between 50 and 90 degrees F. Shake can at least one minute after rattle is heard and occasionally during use. Spray surface with steady, even strokes at a distance of 8-10 inches away. To clean sprayhead for future use, turn can right side up and spray for 3 seconds.