Coach
Sound and thermal insulation in buses – less noise, greater comfort
Engine noise, road noise, body vibrations or external noise – all of these can have a negative impact on the quality of the passenger experience on the bus. Specially developed materials are used to effectively minimise these sources of disturbance.
Heavy-duty sheets (Terodem® and Teroform®) made of bitumen or EVA are applied specifically to sheet metal surfaces – such as the vehicle floor or in the wheel arches – to effectively dampen structure-borne noise. In combination with open-cell acoustic foams, such as those based on melamine resin (Basotect® G+), airborne noise can also be significantly reduced. These materials are used in ceiling linings, side walls, technical areas or in the driver’s cab.
Polyester fibre fleeces (Fiberform 62T SL or Silphon®Fiber) are also increasingly being used in the bus sector. They are dimensionally stable, moisture-resistant and particularly suitable for large-scale interior panelling. Their textile feel also has a positive effect on the interior climate.
Thermal comfort inside the vehicle is equally important for passengers and drivers alike. To prevent overheating in summer and reduce heat loss in winter, high-performance closed-cell PE foams (Plastazote MP15FR) or synthetic rubbers such as Armaflex®, Vibra®Flex or K-Flex are used. These are used in roof areas, side walls and floor structures and offer excellent protection against heat, cold and condensation.
Aluminium-faced insulation mats also reflect radiant heat – particularly effective in the area of roofs, air conditioning ducts or behind cladding.
Recommended products
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Vibration control – smoother ride, reduced wear
Constant vibrations affect the bodywork and interior fittings, particularly during the operation of public service and coach buses. Modern decoupling materials are used to minimise these persistent vibrations:
Elastomers such as Sylomer®, Sylodyn® or rubber-metal elements effectively isolate engine or chassis vibrations from the passenger compartment and body structure. Supplemented by vibration-damping mounts, floor mats and elastic decoupling layers in seat and floor areas, this creates a quieter, more stable ride – whilst reducing stress on the vehicle structure and extending the service life of the components.
