What Each Product Is For
PPF: mils of TPU for grit and light scuffs. Coating: microns of chemistry for beading and chemical resistance. Window film is a third product for glass.
Combo Jobs
Shops often coat gloss PPF after it has settled. Do not coat dirty or uncured film. Matte film needs matte-safe products only.
Ultra Nano Shield Context
The brand sells TPU PPF and a separate ceramic window-film series (CR70, CR50). Do not confuse window ceramic with paint ceramic.
Summary
Pick film for chips, coating for maintenance, or both in sequence. Read specifications instead of package names.
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