Acoustic Dampening Foam
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Detailed Product Description
Acoustic dampening foam is specifically engineered to control and reduce airborne sound levels by maximizing sound absorption. These materials primarily utilize open-cell foam structures (such as specialized PU or polyester-based foam) where interconnected pores trap sound waves and dissipate their energy as heat via molecular friction. The material's effectiveness is quantitatively measured by its Noise Reduction Coefficient (NRC), a single-number rating derived from average sound absorption coefficients across critical octave bands (250Hz to 2000Hz).
Unlike basic vibration tapes, acoustic foams are often thicker and have lower densities to maximize the open-cell structure for air/sound penetration. The adhesive backing is crucial for ensuring permanent attachment to the casing or panel without compromising the foam's internal structure or contributing to VOC emissions (Volatile Organic Compounds) within an enclosed space. The adhesive must be uniform and resist lift-off under thermal and acoustic loads to maintain consistent sound absorption performance.
Why Choose Us
Advantages and Core Features
- High Noise Reduction Coefficient (NRC): Formulated to maximize internal surface area and porosity, achieving high sound absorption efficiency across the key speech and machine noise frequency ranges (500 Hz to 2000 Hz).
- Excellent Low-Frequency Performance: Available in greater thicknesses to effectively absorb longer-wavelength, low-frequency sounds characteristic of large motors and generators, providing a comprehensive acoustic solution.
- Low Volatile Organic Compounds (VOCs): Both the foam and the adhesive are selected to have minimal VOC emissions, ensuring regulatory compliance and maintaining clean air quality within enclosed or residential spaces (e.g., appliance interiors).
- Lightweight and Flexible: The low-density foam material is easy to handle, conforms readily to curved enclosure walls, and adds negligible weight to the final assembled product.
- Permanent, Peel-and-Stick Installation: Supplied with a robust adhesive backing protected by a release liner, allowing for clean, fast, and secure permanent attachment without the need for mechanical fasteners or liquid glues.
- Flammability Safety Compliance: Materials are tested to common automotive (FMVSS 302) or electronics flammability standards, enhancing the safety profile of the final application within electronic or powered equipment.
Core Features
Application Areas
- Server Racks and Data Centers: Lining interior panels of server and networking enclosures to absorb fan and hard-drive noise.
- Generators and Compressors: Affixed to the inside walls of machinery housings to reduce external noise pollution.
- Audio Equipment: Placed inside speakers and headphone casings to damp internal reflections and improve sound clarity.
- HVAC Air Handlers: Lining the ductwork and interior of air handling units to minimize operational fan and airflow noise.
- White Goods Appliances: Applied inside the casings of dishwashers, washing machines, and vacuum cleaners to significantly lower noise output during operation.
Technical Specifications
Introduction
Our acoustic dampening foams are engineered to solve airborne noise challenges, providing effective sound absorption solutions for equipment enclosures, audio systems, and interior architectural features.
Company Profile
Established in 2005, covering nearly 11,000 square meters, we integrate R&D, production, and sales. We uphold quality and reputation, specializing in premium adhesive solutions, particularly in PU/PE/NBR Foam Solutions. We are trusted by global leaders like TCL, Zoppas, and KEGHICON, and offer 10%−15% cost savings compared to EU suppliers. Our commitment to delivering pragmatic, cost-effective solutions is supported by RoHS, REACH, ISO 9001, and ISO 14001 certifications.
Usage Guide
| Material Type | Acoustic-Grade Polyurethane, Polyester Foam |
| Cell Structure | Open Cell (Sound Absorbent) |
| Density Range | 16 to 40 kg/m³ |
| Noise Reduction Coefficient (NRC) | 0.55 to 0.85 (Varies with thickness) |
| Flammability Rating | Tested to FMVSS 302 or UL 94 HF-1 |
| Adhesive Type | Permanent Acrylic, Low VOC |
| Typical Thicknesses | 6 mm to 25 mm |
About
Jiangsu Shixin Adhesive Tape Product Co., Ltd.
Our company was registered and established in Wuxi, Jiangsu in 2005, Wuxi Shixin Adhesive Tape Products Co., Ltd., mainly engaged in various adhesive tape products; We are Wholesale Acoustic Dampening Foam Suppliers andChina ODM Acoustic Dampening Foam Factory and Producer, after nearly 20 years of persistence and struggle, the company has grown vigorously and gradually expanded in scale. In 2018, we invested in a new factory in Suqian, Jiangsu, and established Jiangsu Shixin Adhesive Tape Products Co., Ltd.; At present, our company has become a high-tech enterprise integrating R&D, production and sales. The company has always firmly believed in the belief that "quality and reputation are the foundation of survival", continuously cultivating technical personnel, strengthening the development of new products, improving sales support, and striving to provide customers with better products and services.
Frequently Asked Questions
Frequently Asked Questions (FAQs)
- Q: How does thickness influence the foam's sound absorption ability?
- A: Thickness significantly affects performance, particularly at lower frequencies. Thicker foam is required to effectively absorb lower-frequency sound waves (longer wavelengths), while thinner foams are generally sufficient for high-frequency noise absorption.
- Q: What is the recommended method for calculating the required foam coverage?
- A: Optimal absorption requires covering as much internal surface area as possible, especially parallel reflective surfaces. For critical noise problems, calculations should consider the source's sound power level and the enclosure's internal volume to achieve the target sound pressure level (SPL) reduction.
- Q: Can this foam be used for weather sealing as well as noise reduction?
- A: No, standard acoustic foam is open-cell, meaning it will absorb water and air (it's not a seal). For applications requiring both, the acoustic foam is typically laminated to a non-porous barrier film or used in conjunction with a separate closed-cell foam seal.
- Q: Are there any fire-retardant options available for this foam?
- A: Yes, we supply foam treated with specific additives to meet common self-extinguishing ratings, such as UL 94 HF-1 or specific automotive flammability standards, for enhanced safety in electrical equipment.
Request a Specification Sheet or Sample
Contact our engineering team today to discuss your high reflectance project requirements.
