What type of wax is applied primarily to protect hidden areas of a vehicle?

Cavity wax is specifically formulated for application in hidden areas of a vehicle, such as the inside of doors, rockers, and other cavities where moisture and corrosion can occur. This type of wax creates a protective barrier that seals these areas from environmental elements, preventing rust and deterioration over time. It is designed to reach and adhere to difficult-to-access spots within a vehicle, ensuring comprehensive protection against corrosion.

In contrast, finishing wax is typically used on the outer surfaces of a vehicle to enhance shine and provide a layer of protection against UV rays and environmental pollutants. Polishing wax serves a similar function but focuses more on restoring shine and removing imperfections from the paint surface rather than protecting hidden areas. Protective wax may refer to any general wax that offers surface protection but does not specifically target the hidden areas where cavity wax is specifically intended for use. Therefore, cavity wax is the ideal choice when considering the need for safeguarding concealed parts of a vehicle.