Quote: Carnauba wax layering
~ One man’s opinion / observations ~
Carnauba wax once it cross-links it becomes a transparent layer on top of the paint film surface and provides colour, depth and clarity that are without equal.
These wax molecules form an egg-grate type mesh over the smaller paint molecules of the paint film surface, which gives it an optical depth. Carnauba wax is inherently hydroscopic when exposed to water; wax swells and closes its pores, which along with surface tension, causes `water beading'
By applying more products on top of one that has already cross-linked you can increase its density (up to a point) The thin film of product that's applied isn't really another layer.
Each subsequent applications adherence process is that the solvents work their way into the microscopic gaps and valleys of the previous `layer' thereby creating an anchor, and by surface tension, when the paint film surface is level there is little benefit to adding more.
A level paint film surface improves the paint film surface's desired optical properties (i.e. surface reflectance, clarity, gloss, and depth of shine)
Carnauba Wax diminishes over time (via evaporation [dependant upon ambient temperatures] rain, water, and environmental conditions), which limits its durability. As a general rule-of-thumb: 50% after 30 days, 75% is gone after 60 days and after 90 days it should be reapplied
The purpose of applying a protective coating to automotive finishes is to act as a sacrificial barrier. Then you can reapply another coating to replenish the wax that has worn away.
~ Hope this helps ~
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justadumbarchitect / so I question everything/ Jon