The final part of any long-term detail is applying something to protect your paint, glass, and wheels. You can use a wax, sealant or coating depending on the material.
- Reddit user /u/cf2121 has a write-up thread about how to apply sealants to paint, wheels, and glass.
- Reddit user /u/BaconzJews11 has a write-up thread about how to apply Opti-Coat 2.0 sealant to headlights.
- Larry Kosilla at AMMO created a video about how to apply sealants and waxes.