NVH (Noise, Vibration, and Harshness) is a key engineering discipline focused on controlling the noise, vibration, and structural harshness characteristics of vehicles. NVH solutions are widely implemented in passenger cars, commercial vehicles, buses, rail vehicles, marine vessels, and specialty vehicles to enhance ride comfort, improve passenger satisfaction, and elevate perceived vehicle quality.
Vehicle vibrations originate from multiple sources, including the powertrain, drivetrain, road surface, aerodynamic forces, and moving mechanical systems. If left uncontrolled, these vibrations can generate unwanted noise, loosen mechanical fasteners, cause squeaks and rattles in interior trim components, and contribute to long-term fatigue damage.
Adhesive technologies do more than simply bond components together—they also play a significant role in vibration damping. By creating permanently elastic joints, they reduce the transmission of vibration throughout the vehicle structure, minimize resonance, and facilitate the reliable integration of dissimilar materials.
In NVH applications, adhesives are widely used for acoustic insulation panels, vibration damping sheets, insulation foams, interior trim components, floor coverings, engine compartment insulation, headliners, door interior assemblies, and a wide range of sound-absorbing materials.
Technologies Used
Polyurethane Technology
Polyurethane-based adhesives maintain joint integrity under dynamic loading conditions thanks to their high elasticity, helping to reduce vibration-induced fatigue.
They are particularly well suited for acoustic insulation components and semi-structural bonding applications.
Contact Adhesives
Contact adhesives are widely used for bonding acoustic foams, sound insulation felts, insulation foams, textile-based coverings, and other large-area NVH materials.
Their fast application characteristics make them especially suitable for high-volume production lines.
Hybrid Polymer Technology
Hybrid polymer-based adhesives absorb a significant portion of vibration energy through their permanently elastic structure, reducing stress concentrations at bonded joints.
They also provide reliable adhesion between dissimilar materials while delivering long-term durability and performance.
Elastic Sealing Systems
Elastic sealing products improve acoustic performance by reducing air leakage through panel joints.
They also create flexible joints that help minimize vibration-induced noise, contributing to a quieter and more comfortable vehicle interior.
Product ınformatıon
- Senta POLMAX, Senta SPAREX, Senta BONMAX, SOUDAL SoudaFlex Product Group (PU), SOUDAL SoudaSeal Product Group (Hybrid Polymer), SOUDAL Contact Adhesive Product Group (Solvent-Based / Water-Based), SOUDAL FixAll Product Group (Hybrid Polymer)
