Q: Are there any concerns spraying the product onto Chevy trucks with the wax based material the factory uses? Will it drip?

A: The Original Black Wax Coating is compatible with the hot melt dip factory wax applied to GM SUV’s and Truck chassis. The undercoating has good sag resistance but will drip if over applied.

Q. Can this product be applied on vehicles that have been previously undercoated with lanolin based products, such as Fluid Film, Protection First Class, or Wool wax?

A: We do not recommend coating over the annual type undercoating; however, An aggressive power washing that removes the annual undercoat oily film can provide a clean surface that can then be coated with our Dry rust proofing product.

Q: Does the undercarriage need to be clean and free from all rust before applying?

A: The maximum performance of our Dry Undercoating product is achieved when the substrate is clean, dry, and free of loose rust, oil and mill scale. Any undercoating performs best when applied over a properly prepared surface. If the rust/corrosion is tightly adhering to the metal, the vehicle will still receive great protection, but any loose rust or scale will be removed first.

Q: Once the undercoating is applied, can I wash it and still be okay?

A: The undercarriage can be pressure washed; however, prolonged application of the pressure wash nozzle to one area less than 4 inches from the surface may damage the wax.

Q: Can this undercoating be applied to plywood underneath a camper?

A: Our Dry Undercoating is an excellent sealers for wood. It is also abrasion resistant, so it protects the wood from road debris that may be propelled into the wood.