Aiming at 450 km/h trains: where damping coatings are heading
Higher speed makes vehicle vibration and noise more pronounced and puts higher demands on damping coatings. What follows is the direction the industry expects of the next generation of material, not an existing figure of any one product.
Stronger damping
The next water-based damping coating needs a stronger damping effect, possibly through a refined formulation, a new damping mechanism or added additives; it also needs good adhesion and durability so it keeps working at high speed.
Better heat resistance
High-speed running raises operating temperatures, so the coating needs good thermal stability and must keep its damping effect and physical properties when hot, possibly through heat-resistant additives or an improved preparation process.
Better environmental performance
Keep VOC emissions low in production and use, and reduce environmental impact over the whole life cycle, for example with biodegradable raw materials, higher recycling rates or a greener production process.