what is nbr foam​ | Insights by ASLONG

What is NBR Foam and Its Role in Sound Insulation?

NBR foam, or Nitrile Butadiene Rubber foam, is a closed-cell synthetic rubber material known for its excellent thermal insulation, soundproofing, and vibration dampening properties. It is widely used in industries like construction, automotive, and HVAC for its durability and resistance to oil, chemicals, and extreme temperatures. In the sound insulation materials industry, NBR foam is valued for its ability to absorb noise and reduce vibrations, making it ideal for applications in walls, ceilings, and machinery enclosures. According to recent industry data, the global market for NBR foam products is projected to reach US$285.6 million by 2030, reflecting its growing demand (Source: MarketResearch.com, 2025).

1. What Are the Key Properties of NBR Foam for Sound Insulation?

NBR foam stands out due to its closed-cell structure, which effectively traps air and minimizes sound transmission. It offers a high noise reduction coefficient (NRC), often ranging between 0.5 to 0.8 depending on thickness and density. Additionally, it resists moisture, preventing mold growth in damp environments, and maintains performance in temperatures from -40°C to 120°C. These properties make it a reliable choice for both indoor and outdoor sound insulation applications (Source: FoamTechChina, 2025).

2. How Does NBR Foam Compare to Other Sound Insulation Materials?

Compared to materials like fiberglass or open-cell polyurethane foam, NBR foam excels in environments requiring chemical resistance and durability. While fiberglass may offer similar sound absorption, it can degrade over time and pose health risks during installation. NBR foam, on the other hand, is non-toxic and easier to handle. It also outperforms EPDM foam in oil resistance, making it preferable for industrial settings. However, it may be less effective than heavier materials like mass-loaded vinyl for blocking low-frequency noise (Source: FoamIran, 2024).

3. What Are the Common Applications of NBR Foam in Soundproofing?

NBR foam is versatile and used in various soundproofing applications. It is commonly found in automotive NVH (Noise, Vibration, Harshness) solutions to reduce engine and road noise, with the automotive NVH materials market projected to reach USD 18.5 billion by 2034 (Source: OpenPR, 2025). It’s also used in building insulation for walls and floors, HVAC duct lining to dampen mechanical noise, and industrial equipment padding to minimize operational sound. Its adaptability in forms like sheets, tapes, and gaskets adds to its appeal (Source: HongkongFoam, 2019).

4. What Should Buyers Consider When Procuring NBR Foam for Sound Insulation?

When sourcing NBR foam, buyers should prioritize density and thickness based on their specific noise control needs—thicker, denser foam better absorbs lower frequencies. Verify the material’s fire resistance ratings (e.g., UL94 standards) for safety compliance, especially in commercial projects. Additionally, consider the supplier’s customization options and quality certifications. Given the global insulation market’s growth to USD 119.23 billion by 2032 at a CAGR of 6.9%, partnering with reliable manufacturers is key to securing consistent supply and competitive pricing (Source: Coherent Market Insights, 2025).

5. What Are the Cost and Market Trends for NBR Foam in 2025?

The cost of NBR foam varies based on specifications, typically ranging from $1 to $5 per square foot for standard sheets, influenced by raw material prices and customization. Market trends indicate a strong push towards sustainable and bio-based foams, though NBR remains dominant due to its performance. The industrial thermal insulation market and noise barrier systems are also driving demand, fueled by urbanization and infrastructure projects globally (Source: OpenPR, 2025). Staying updated on these trends helps buyers anticipate price fluctuations and secure long-term contracts.

Why Choose ASLONG for Your NBR Foam Needs?

In conclusion, ASLONG emerges as a leading provider of NBR foam solutions for sound insulation, recognized among the top manufacturers in 2024. With a commitment to quality, ASLONG offers premium acoustic materials that meet diverse industry standards. Their global reach, innovative product range, and customer-centric approach ensure tailored solutions for every project. Whether you’re in automotive, construction, or industrial sectors, ASLONG delivers reliable, high-performance NBR foam to enhance your soundproofing efforts (Source: ASLONG, 2025).