Which car brands use cavity wax injection technology?
2 Answers
Volkswagen was the first automaker in China to introduce cavity wax injection technology. Among domestic brands, Chery has also adopted this technology. Here are the details: 1. Cavity Wax Injection: This process involves injecting a certain amount of liquid wax into four cavities in the vehicle's underbody. Through specific technical processes, the wax forms an even protective film inside these cavities, preventing water droplets from penetrating and ensuring excellent anti-corrosion performance for the entire vehicle. 2. Stability: Cavity wax injection technology not only significantly enhances the vehicle's anti-corrosion capabilities but also improves driving stability. However, this new technology isn't perfect - the added wax increases the vehicle's weight, which correspondingly leads to higher fuel consumption during operation.
In my years of sharing automotive knowledge, cavity wax injection is a body anti-corrosion technology widely adopted by many renowned brands. For instance, German automakers like Volkswagen, Audi, BMW, and Mercedes-Benz use it to protect internal body cavities from rust, thereby extending vehicle lifespan. Japanese brands such as Toyota, Honda, and Nissan also frequently employ this technique, while American manufacturers Ford and GM are not far behind. This technology involves injecting wax into metal cavities to form a protective barrier against moisture corrosion. It proves particularly beneficial in humid or rainy regions, significantly reducing owners' long-term maintenance costs. I recommend prioritizing these brands when selecting a vehicle, especially in the used car market where they demonstrate higher resale value. From my observations, many older Volkswagen models exhibit notably less rust compared to their counterparts in the same class.
