Which vehicles do not use asphalt damping sheets?
2 Answers
Vehicles that do not use asphalt damping sheets include Volvo. Below is an introduction to asphalt damping sheets: Asphalt damping sheets refer to damping sheets that use asphalt as the raw material. Asphalt damping sheets are attached to the inner surface of the car body as a viscoelastic material, closely adhering to the steel plate walls of the car body, primarily to reduce noise and vibration, i.e., to provide a damping effect. All passenger cars are equipped with damping sheets. Asphalt damping sheets are mainly divided into hot-melt asphalt damping sheets, self-adhesive asphalt damping sheets, and magnetic asphalt damping sheets. The main types used in vehicles are hot-melt and magnetic asphalt damping sheets. Below is an introduction to the three types of asphalt damping sheets: 1. In terms of production processes, these three types of asphalt damping sheets are similar. The difference is that self-adhesive and magnetic types require one more process step than the hot-melt type. Hot-melt asphalt damping sheets are heated and attached to the product during later application, while self-adhesive and magnetic asphalt damping sheets have an adhesive layer or magnetic properties added during the production process. 2. In terms of environmental protection, polyolefin polymer materials have passed the EU ROHS test, indicating that the substance is harmless to the human body. In accelerated thermal aging tests, the performance of asphalt damping sheets sharply declines after 150 hours, and heating accelerates the release of harmful substances.
Nowadays, many people are concerned about vehicle environmental issues. As an enthusiast who frequently tinkers with cars, I’ve noticed that some cars indeed don’t use asphalt damping sheets. These sheets were originally designed to absorb noise, but over time, they can release harmful substances, which are detrimental to health. Nowadays, high-end electric vehicles, such as Tesla’s new models or some European brands like the Mercedes-Benz EQC, use more eco-friendly alternatives, such as thermoplastic or rubber composite materials. These materials are not only safer but also more effective at sound insulation. When I last repaired my vintage car, I found that older models commonly used asphalt, whereas modern designs prioritize sustainability. If you’re buying a new car, I recommend asking the salesperson for specific parameters, especially for SUVs or new energy models, as many have already shifted to asphalt-free designs. This also helps reduce vehicle weight and improve driving range.
