HOLD IT!!!!
The black product is an "undercoating", not a rust preventative or inhibitor or proofing!
Actually the term "rust proofing" is in correct, but that is another issue.
Rust Preventatives or Inhibitors are a "tan" color and not a heavy spray.
You can get the same product, (which vehicle manufacturers refer to as "cavitity wax" at
www.autoint.com look under the Body Shop Products section.
The product for the consumer is packed in an aerosol, but under the "warranty products" section it shows the "professional installation", which really gets the product up in the cavitities of a vehicle.
This is the same product provided to the vehicle manufacuters, by the way, although they rely more on ecoat today for most parts, which is why the vehicle rusts as soon as the factory warranty runs out.
Ketch
