Genesis G70 Undercoating Review: Engine Noise & Wind Noise Solved
Service Price
$approx. $1,500+
Estimated price · Actual price may vary by shop
Genesis G70 undercoating review: Applied "Ground Zero" damping and "3M Thinsulate" for engine and wind noise. Significantly quieter ride.
Why Your Genesis G70 Needs Undercoating
The Genesis G70, a premium sedan, comes with a decent amount of factory sound deadening. However, during real-world driving, road noise, engine sounds, and wind noise can still intrude into the cabin. This indicates that the stock soundproofing isn't enough to achieve the quietness expected from an aftermarket standard. Noise can enter the cabin through various paths, especially at highway speeds or during low-speed driving. The underbody metal, rear fender wells, B-pillars, door panels, and even the dashboard cavity can all act as pathways for vibration transmission.
This review details a multi-stage soundproofing process applied to a Genesis G70, addressing underbody noise, door wind noise, and engine noise. We'll explore the causes of noise in each area and the tailored solutions applied.
Underbody Noise Reduction: The Importance of Damping Materials
To improve the G70's underbody noise, the first step involves removing interior trim panels. Once the trunk and cabin floor coverings are removed, the metal floor pan is exposed, which is a primary source of vibration. While the Genesis G70 has some factory sound deadening material (damper), it doesn't cover the entire metal surface area, particularly in the upper trunk and inside the rear fender wells.
The damping material used in this application is "Ground Zero" (Russian-made). Its high aluminum content and butyl composition effectively suppress metal panel vibrations while simultaneously enhancing sound insulation. This works differently from sound absorption materials; damping targets vibration itself, whereas absorption deals with sound waves.
Installation process:
- Remove interior trim panels to expose the metal floor pan and fender wells.
- Apply "Ground Zero" damping material to the exposed metal surfaces, ensuring full coverage.
- Use a roller to press the damping material firmly against the metal, eliminating air gaps for maximum vibration suppression.
- Reinstall interior trim panels.
The key to effective damping is ensuring maximum adhesion with a roller. Minimizing air gaps between the metal and the damping material is crucial for blocking vibration transfer. This process requires significant physical effort as the entire trunk, both rear fender wells, and the cabin floor metal must be uniformly compressed.
Two-Stage Sound Absorption for Remaining Noise
After the damping application, the process moves to sound absorption. For this stage, "3M Thinsulate" is used. The role of the sound absorption material is to absorb sound waves generated by the vibrations of the underbody metal, preventing resonance. This is particularly effective in hollow spaces like the rear fender wells.
By combining damping materials to reduce initial vibrations and absorption materials to soak up residual sound waves, a significant improvement in cabin quietness is achieved. This comprehensive approach tackles noise from the road, engine, and wind, creating a more refined driving experience for the Genesis G70.
Frequently Asked Questions
Q. How much does Undercoating cost for a Genesis G70?
The cost for this specific undercoating service on the Genesis G70 was not provided in Korean Won. Typical undercoating services in the US can range from $150 to $500 depending on the type of coating and vehicle coverage.
Q. How long does Undercoating last on a Genesis G70?
The longevity of undercoating can vary, but many professional applications are designed to last for several years, often with a manufacturer's warranty. Regular inspections and touch-ups, especially after harsh weather or road conditions, can help maintain its effectiveness.
Q. Is Undercoating worth it for a Genesis G70?
Undercoating is most beneficial for G70 owners who frequently drive in areas with harsh weather, road salt, or gravel, or for those seeking maximum cabin quietness. It provides significant value by protecting against corrosion and reducing road noise, enhancing both the car's longevity and driving comfort.
Q. How is Undercoating done on a Genesis G70?
Undercoating typically involves cleaning the vehicle's undercarriage, applying a protective layer of material (like rubberized asphalt, polyurethane, or wax-based coatings), and allowing it to cure. This process helps to prevent rust, reduce road noise, and protect against minor impacts.
Q. What is the best Undercoating option for a Genesis G70?
For a Genesis G70, a combination of sound damping materials like "Ground Zero" and sound absorption materials like "3M Thinsulate" applied to the interior floor and fender wells offers superior noise reduction. For corrosion protection, professional-grade rubberized or polyurethane coatings are generally recommended.
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