Optimum Paint Prep is the perfect product to use on your paint before applying a coating (i.e. Optimum Gloss-Coat). Before applying a coating we always recommend thoroughly washing and polishing the paint to "lock in" that perfect shine. The issue that arises is that there are often oils in polishes that can remain on the paint and hurt how a coating, or any other form of protection, bonds to the surface. Leftover wax can also prevent bonding so it's critical to remove all traces. Paint Prep will clean the surface, ensuring that it is free from these oils and wax residue so you are ready for a coating, wax or sealant application. Your protection will apply with ease and bond with the surface properly for maximum durability after using this cleaner. Just mist Paint Prep on the paint and wipe it away with a clean microfiber towel. You will see and feel any a squeaky clean shine that will allow you to apply any form of protection (Waxes, Sealants, Coatings) on top of. If you are looking for an easy to use product to leave the paint in pristine condition for protection application, the Optimum Paint Prep is a great choice!