NVH (Noise, Vibration, and Harshness) refers to the collection of undesirable acoustic and mechanical responses that originate from vehicle components and systems. These issues can arise from:

• Engine vibrations
• Road impact and tire noise
• Component resonance
• Loose or vibrating assemblies

Excessive NVH negatively affects perceived vehicle quality, driver comfort, and long-term durability. As automotive OEMs and Tier 1 suppliers strive to meet stricter quality standards and consumer expectations, coatings that help reduce NVH are more important than ever.

1. Vibration Absorption and Damping

Rubber-like coatings such as Plastisol provide a flexible, cushioned layer that absorbs shock and vibration at the source. These coatings are often applied to:

• Brackets and clips
• Control arms and bushing components
• Seat rails and subframes
• Battery trays and underbody components



By absorbing energy that would otherwise transfer as noise or shake, these coatings help prevent resonance buildup and reduce overall vibration.

2. Resonance and Rattle Suppression

Thin metal parts—like heat shields, brackets, or covers—are prone to rattling or resonating under engine or road-induced stress. Applying a thicker, sound-deadening coating can help:

• Mass-dampen lightweight parts
• Prevent panel chatter
• Create a more secure, quiet fit between assemblies

Nylon and epoxy-based coatings add rigidity and dimensional stability while helping to disrupt the frequency of harmful resonance.

3. Surface Protection for Long-Term NVH Control

Over time, uncoated components wear down, corrode, or loosen—leading to increased NVH. Coatings serve as a barrier against environmental degradation while maintaining consistent fit and function. This is especially critical in:

• Engine compartments
• Suspension systems
• Brake assemblies
• Exhaust systems

Precision Dip Coating provides vibration and damping solutions for a wide range of automotive parts, including:

• Metal brackets and hangers
• Pedal arms and levers
• Shifter assemblies
• Battery clamps and trays
• HVAC and cooling system mounts
• Bumper impact supports
• Cable harnesses and clamps
• Dashboard reinforcement frames

These components all benefit from coatings that reduce sound transmission and structural vibration, especially in electric and hybrid vehicles where NVH sensitivity is even higher.

We understand the unique challenges of NVH control in modern vehicle design. Our team works closely with automotive engineers and suppliers to provide:

• Custom dip coating and fluidized bed coating options
• ISO 9001:2015 certified quality assurance
• Material selection for damping, abrasion, and chemical resistance
• Support for prototyping and high-volume production
• Experience across automotive interiors, underhood, and chassis applications



Whether you're building next-gen EVs or refining ICE platform parts, our coatings offer reliable NVH improvement without redesigning your part.

NVH performance is no longer optional—it’s a key part of vehicle refinement and customer satisfaction. With vibration and resonance damping coatings from Precision Dip Coating, you can extend part life, simplify assembly, and deliver quieter, smoother rides. Contact us today to learn more.