For best results, and to get the most durability and longevity, you would want a scratch and swirl-free surface (a paint correction) ideally.And also a surface that is entirely clean and stripped free of waxes, polishes, solvents, and sealants (including TLC).

Brand: THE LAST COAT
Type: CERAMIC COATING
Warranty: 60 DAY
Unit Type: fl oz
Manufacturer Part Number: 5864126652
Country/Region of Manufacture: United States
Unit Quantity: 2 X 8 OZ
UPC: 850019255065