After the car is manufactured, its body can endure up to five to ten years, or even longer, during which the environment may be extremely harsh. Rusting (oxidation) is a fundamental chemical change in many metals, which occurs slowly at room temperature, especially in commonly used steel. Once rusted, the resulting iron oxide absorbs water molecules from the air, leading to more severe rusting. As for materials, using steel alone cannot prevent rusting entirely. Galvanized steel does not offer complete rust prevention.

Rust prevention in cars primarily focuses on the body. The body during the manufacturing process is referred to as the "white body." Rust prevention is achieved through "cathodic electrophoresis painting" during the white body manufacturing process, but this does not prevent cavity corrosion.

Many cavities are present on the vehicle body. To enhance the body's strength and reduce its weight, this is crucial in the common anti-rust coating process. To prevent large-scale electrochemical corrosion, the in-cavity technicians have invented the in-cavity wax injection technology. Particularly, using vapor phase anti-rust wax, it can provide both contact and non-contact anti-rust functions. For areas where wax injection is insufficient:

Also provides anti-rust protection within the cavity.

Cavity Wax Injection Technology

When manufacturing parts with cavities, it is typically necessary to pre-drill holes. (After professional design, wax is usually pressed directly onto some screw holes and the weight of the holes, without the need for special wax holes.) When the wax

When rods are pushed out through the easily removable holes, some enclosed sections facilitate the flow of liquid wax. The chromosome passes through various parts in front of the layer and enters the wax layer.

After applying the anti-rust wax to the body, it will not cool down immediately; instead, the undercarriage is wiped clean through the process of waxing, while the wax is still not fully dried.

The Development of Cavity Wax Injection in China

Applying anti-rust wax inside the car's cavity not only ensures excellent corrosion resistance for the vehicle but also enhances its stability during operation, thereby reducing fuel consumption accordingly, making the vehicle's fuel economy slightly distinct.