Spitshine
What you are doing is neutralizing the solvent so that it doesn't remove the previous layer. One of the very important nuances of layering is to use very little applied pressure and friction when applying subsequent layers as they will have a negative impact on wax thickness
Usually a spit shined surface is slicker, smoother, and has different beading characteristics; with even smaller tighter water beads. The durability is about the same (or slightly better) and although spit shining is very time consuming, the improved depth of shine and glossy appearance is worth it
Victoria Wax Pre-Wax Cleaner - for optimum results, this product must be used before applying this paste waxes for the first time. A unique non-abrasive formulation for regular and clear-coated paint finishes. Use as a foundation paint preparation, it gently cleans the paintwork and helps to create a perfect bond between the finish and the wax and create depth of shine.
Victoria Concours Wax - apply a thin coat, gently work it in and let it sit until tacky, then using a 100% cotton micro fibre towel gently remove everything to expose a finish ready for the wax. If needed, repeat cleaning action until all contaminates, grime and foreign products are removed. Remember, the cleansing and prepping process should only be done before the wax is applied for the first time and there after only when needed.
Using a damp applicator and cold (almost ice) distilled water in a fine mist spray bottle neutralizes any solvents in the newly applied layer; the water should be cold, using ice cold water after applying a wax will harden the wax quicker making the shine deeper and help the new wax adhere to the finish, working until the water/ wax solution disappears.
The reason for using a damp applicator is to neutralize the solvents as much as possible, and to avoid the thin coats of wax sticking to the applicator, this enables the wax to build thin, fine coats. Spray fine mists of cold (almost ice) distilled water to a single panel and then apply a light Carnauba wax to the paint surface.
Always apply extremely thin layers using a very light pressure when spit shining, Wipe it onto a small work area and continue wiping until most of the wax disappears. Mist lightly as needed, keeping a few water droplets on the surface. Move to the next work area and repeat. After you do the final area you'll have a surface with many spots of hazed wax. Lightly mist an area with the very cold distilled water - 1/2 hood or door - and lightly buff with a MF towel. Turn the towel frequently, when the towel becomes too damp switch to a new towel.
When you spray very cold water on a Carnauba wax layer that has been allowed to outgas (i.e. the solvents that make up its carrier system have evaporated) it reduces the wax surface temperature to the point that the next applied waxes carrier solvents do not dilute the previously applied wax and it forms a semi-hard coat.
• Allow each subsequent Carnauba waxes solvents to outgas before applying more layers. Spit shining allows definitive layers, as opposed to a thick coat of wax that would result if the solvents dissolve the wax layer that they are applied to.
• After 24 hours you can repeat the procedure, using cold (almost ice) distilled water and Pinnacle Crystal Mist (a low solvent quick detail (QD) each coat applied will increase the surface depth of shine with five or six coats being optimal
• Allow the radiation heat to 'sweat' the wax and then buff with a 100% cotton micro fibre towel.
Also be aware that the both the product and the foam pad may be non-abrasive, but application pressure if not kept to an absolute minimum and using use a very light and even pressure, may re-introduce surface marring and/or removal of the previously applied product by friction. (See also Spit Shining, Wax (Hand applied) Solvents)
Information resource- based on information in a post by NickT on Autopia.org and the original method used to shine RAF uniform dress shoes