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Ruido, Vibración, Dureza (NVH)

NVH solutions for a quieter ride

Redefining the passenger experience

When it comes to the premium automotive experience, Dow technologies in the automotive acoustics space are reimagining what it means to have a quieter ride. Our expertise and products range from polyurethane foams, polyolefin elastomers and resins, to coating materials – all with a focus on developing holistic NVH systems. With a robust acoustics product portfolio coupled with our unique testing suite, we create innovative, tailor-made NVH solutions.

Polyurethane foams

Used in myriad applications, polyurethane foams, like BETAFOAMTM and Flex Foam Systems, serve as superior sound absorbers in automotives, dispersing the noise before it reaches the driver’s ear.

BETAFOAM™ cavity fill foams maximize NVH performance when compared to baffle technology while minimizing costs and providing superior lightweighting options; provides increased structural support; and helps seal out the cabin against road and engine noise and dust.

With excellent sealing and form-fitting, lightweight cavity fill capabilities, BETAFOAM™ polyurethane foams can be used wherever cavity sealing or stiffening is required, including:

  • Body-side joints
  • Door panels
  • Engine cradles
  • Frame rails
  • Hydroformed replacements
  • Lateral rails
  • Longitudinal structure
  • Pillars
  • Sills
  • Underbody cross-car structure

Flex Foam Systems are optimized for cost, weight, and performance. Our in-house expertise with formulated systems enables the development of a specialized acoustic absorption layer in flooring applications.

Advantages:

  • Excellent tensile properties
  • Outstanding color retention during processing
  • Excellent adhesion to substrates such as vinyl skin
  • Durable
  • Fast curing

Polyolefin elastomers and resins

Serving as a key component of the acoustic barrier, polyolefins help improve layer processability and ability to block sound waves from entering the passenger cabin. By improving the NVH performance of carpeted flooring applications while reducing the weight of the acoustic barrier, Dow’s polyolefin solutions are constantly anticipating rigorous consumer demands to drive the industry forward.

Los elastómeros de poliolefina ENGAGE™ permiten la fabricación de barrera acústica NVH de alta calidad que son fáciles de procesar, moldear e instalar.

Beneficios:

  • Flexibilidad excepcional (bajo módulo) y ductilidad a baja temperatura
  • Fluidez excepcional que permite niveles de llenado muy altos
  • Incorporación de los desperdicios en el proceso, minimizando el impacto ambiental
  • Emisiones bajas de olor y COV
  • Excelentes propiedades de elongación y fusión y procesabilidad

NORDEL™ EPDM permite una absorción de vibraciones de alta calidad en amortiguadores de vibraciones y soportes de impacto.

Beneficios:

  • El alto peso molecular permite la incorporación de cargas y aditivos
  • Amplia distribución de peso y arquitectura molecular que proporcionand una excelente procesabilidad
  • Su composición a medida proporciona excelentes propiedades físicas y un desempeño de flexibilidad a baja temperatura

KELDAX™ Sound Barrier Resin is a filled, ethylene-based polymer that provides acoustical sound barrier performance in automotive and other applications.

Advantages:

  • Solución NVH totalmente formulada
  • Fácil de procesar y formar
  • Fácil de procesar y formar

Coating materials

ACOUSTICRYL™ Acrylic Resins for liquid applied sound damping (LASD) offer easy spray alternatives to asphaltic membranes and viscoelastic materials across a range of applications where damping solutions are needed.

Uses:

  • Marine/Rail
  • Passenger cars
  • RV/Van/Bus
  • Agriculture and construction equipment

Advantages:

  • Better damping options
  • Lower weight options
  • Lower odor
  • Non-reactive on the line
  • Simpler application
  • Lower VOC


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