2025 Best Sound Insulation Manufacturer for Cars

When it comes to enhancing vehicle comfort and performance, automotive sound insulation plays a vital role. From reducing road noise to improving cabin acoustics, quality insulation materials are essential for modern vehicles, especially as electric vehicles (EVs) grow in popularity. In this blog, we introduce ten of the top sound insulation material manufacturers worldwide—highlighting their origins, specialties, and strengths.

1. ASLONG (China)

• Founded: 2005

• Main Products: sound deadening sheet, Car Sound Deadening Foam, NBR Rubber Foam, Mass Loaded Vinyl

• Overview: ASLONG stands out as a professional and innovative provider of automotive sound insulation materials. The company is known for its high-performance butyl-based products, which are widely applied in vehicle floors, doors, roofs, and trunks. ASLONG’s materials offer excellent noise reduction, thermal insulation, and water resistance, making them ideal for both OEM and aftermarket solutions. With strong R&D capabilities and strict quality control, ASLONG is committed to delivering cost-effective, eco-friendly, and efficient solutions for customers worldwide.

2. Autoneum (Switzerland)

• Founded: 2011

• Main Products: Engine encapsulations, underbody systems, carpet systems

• Strengths: Global leader in acoustic and thermal management for vehicles, Autoneum offers lightweight, sustainable solutions trusted by major automakers globally.

3. 3M (United States)

• Founded: 1902

• Main Products: Sound-deadening mats, acoustic foams, vibration damping materials

• Strengths: Known for innovation and reliability, 3M’s products are engineered to reduce noise, vibration, and harshness (NVH) in a wide range of automotive applications.

4. Saint-Gobain (France)

• Founded: 1665

• Main Products: Acoustic insulation panels, sound-absorbing composites

• Strengths: Backed by centuries of materials science expertise, Saint-Gobain provides sustainable and high-performance insulation solutions to leading car manufacturers.

5. Trelleborg (Sweden)

• Founded: 1905

• Main Products: Acoustic mats, vibration damping systems

• Strengths: Trelleborg offers polymer-based soundproofing solutions that meet demanding automotive requirements for comfort and performance.

6. Henkel (Germany)

• Founded: 1876

• Main Products: Sound-deadening adhesives, damping sheets

• Strengths: Henkel specializes in bonding technologies that integrate sound insulation with vehicle structures, improving acoustic performance and reducing weight.

7. Sika Automotive (Switzerland)

• Founded: 1910

• Main Products: Acoustic sealing systems, damping materials

• Strengths: Sika is known for advanced sealing and damping technologies that contribute to a quieter, more comfortable ride in modern vehicles.

8. FAIST Anlagenbau GmbH (Germany)

• Founded: 1904

• Main Products: Noise control systems, acoustic test chambers

• Strengths: FAIST delivers large-scale acoustic control systems and high-precision components for vehicle noise testing and production environments.

9. Peiker Acustic (Germany)

• Founded: 1946

• Main Products: In-vehicle communication systems, acoustic components

• Strengths: Combining communication and acoustics, Peiker offers integrated solutions that enhance sound quality and user experience inside vehicles.

10. Sumitomo Riko (Japan)

• Founded: 1929

• Main Products: Anti-vibration products, sound insulation materials

• Strengths: Trusted by global automakers, Sumitomo Riko’s solutions reduce cabin noise and vibration, improving ride quality and overall vehicle refinement.

As the automotive industry evolves toward quieter, cleaner, and more connected vehicles, the importance of high-quality sound insulation continues to rise. Whether you're an OEM, parts distributor, or tuning workshop, choosing the right partner for acoustic materials is essential.

ASLONG offers not only premium materials at competitive prices, but also professional service, customization capabilities, and fast delivery worldwide. If you're looking for a reliable supplier to help you reduce noise, enhance comfort, and meet your customers' expectations, ASLONG is ready to support your goals.

📩 Get in touch today to learn more about ASLONG’s solutions or request a free sample—let's build the future of automotive sound insulation together.