Why high-speed rail wants water-based damping coatings
The structural parts of high-speed rail vehicles often use damping coatings to reduce vibration and noise. Environmental and operating requirements are pushing material choice from solvent-based to water-based.
Why the shift to water-based
Traditional damping coatings use organic solvents as the base; water-based coatings use water as the diluent. The VOC content and emissions of a specific model follow its current technical data sheet (TDS), safety data sheet (SDS) and test methods.
Where the demand comes from
High-speed rail is public transport, and the effect of the operating environment on health draws growing attention; environmental policy is tightening, and companies need greener materials to meet the rules.
What is demanded of performance
High-speed rail sets high requirements for damping effect, heat resistance and weather resistance. A material has to meet those requirements and environmental standards together; the actual figures follow the data and test reports of the model.