Product Description
NeoFill-HD is used for technical sound absorption. Its industry leading 150-200 PPI open-cell surface with activated carbon granules guarantees that sound waves are not reflected as an echo but can penetrate the cell structure unhindered. The sound energy is reduced in the cell structure, giving NeoFill-HD an excellent sound absorption capacity. NeoFill-HD excels at absorbing a wide range of frequencies due to its high density which has been formulated to improve low frequency absorption below 300Hz.
Granular activated carbon (GAC) has numerous applications due to its ability to adsorb and desorb air and gas molecules. It has been shown to exhibit unusually high low frequency sound absorption. This behavior is determined by both the multi-scale nature of the material, i.e., the existence of three scales of heterogeneities, and physical processes specific to micro- and nanometer-size pores, i.e., rarefaction and absorption effects.
Specifications:
- Material: Polyurethane HD foam with granulated active carbon
- Type: Open Cell, porosity 150-200 PPI(pores per inch)
- Colour: Black
- Size (mm): 2000 x 1000
- Thickness (mm): upto 50
- Density: 100kg/m3
- Fire Resistance: UL94 HF-1
- Temperature resistance: -40°C to +110°C
- Safe and non-hazardous
- Non-fibrous
- Formaldehyde free, zero emission
- Acoustic benefits: sound absorption
- Units in Box: 1 pcs (total 21.52 SqFt / 2 SqM)
- Made in Germany
Applications:
- DIY Acoustic Panels
- Door / Window Soundproofing
- Industrial Soundproofing & Absorption
- Generator Soundproofing
| Technical Parameter | Nankarrow NeoFill-HD (Acoustic-Grade) | Mattress-Grade “Acoustic” Foam | Why It Matters (Engineering Impact) |
|---|---|---|---|
| Material design | Highly modified, impregnated open-cell PU acoustic foam | Commodity flexible PU foam (bedding grade) | Acoustic foams are engineered for repeatable performance; mattress foam is not. |
| Open-cell porosity | Controlled open-cell structure for predictable absorption | Inconsistent pore geometry and flow resistivity | Consistent porosity improves repeatability across batches and over time. |
| Density (design range) | 50 / 70 / 80 / 100 kg/m³ | Typically lower; varies widely; often unspecified | Higher/controlled densities support durability and stable acoustic impedance. |
| Fire classification (EU/UK) | EN 13501-1: B-s1,d0; BS 476 pt6 & pt7: Class 0 | Usually not certified; often fails building compliance | Fire-rated materials are mandatory for many commercial/public spaces. |
| Smoke & flaming droplets | s1 (low smoke), d0 (no flaming droplets) | Not classified / unknown | Controls smoke and melt-drip risk during fire events. |
| UL flammability | UL94: V-0 | Typically not tested | Supports safer use near electrical equipment and OEM enclosures. |
| Surface burning (ASTM) | ASTM E84: Class A | Not tested / inconsistent | Demonstrates controlled flame spread and smoke development. |
| Operating temperature | -30 °C to +100 °C | Lower; performance degrades with heat | Maintains mechanical/acoustic properties in HVAC and machinery bays. |
| Air erosion resistance | ASTM C1071: Pass | Often sheds/crumbles under airflow | Critical for duct lining: reduces dusting, loss of thickness, and IAQ issues. |
| Dusting / migration | Chemically inert; will not dust or migrate under air movement | Can powder, crumble, or deform over time | Keeps acoustic performance intact and reduces contamination risk. |
| Mildew / fungus resistance | Doesn’t support growth (ASTM D2020 / G21) | May support growth in humid conditions | Important for long-term hygiene in AC ducts, basements, and coastal sites. |
| Moisture behavior | <9% water vapour sorption (ASTM C553) | Often higher; rarely specified | Lower moisture uptake supports dimensional and acoustic stability. |
| Corrosiveness to steel | ASTM C665: Pass | Not tested | Compatibility with metal ducts/equipment reduces long-term risk. |
| Thickness range | 6 mm to 100 mm | Limited, inconsistent, often custom-cut | Enables engineered broadband absorption (thin→HF, thick→mid/low). |
| Acoustic performance (NRC) | NRC 0.25 @12 mm; 0.45 @25 mm; 0.70 @50 mm | Usually untested; values not repeatable | Published lab values support specification and predictable design outcomes. |
| Test method (absorption) | ISO 354 reverberation room method (chart available) | Rarely tested to ISO methods | ISO methods provide credible, comparable acoustic evidence. |
| Sound Transmission Insertion loss (duct lining) | Measured per BS EN ISO 7235 (graph available) | Not characterized | Directly relevant to wall & ceiling soundproofing, HVAC silencing and generator and equipment noise control. |
| Longevity / stability | Designed for industrial/architectural use; stable under airflow and temperature | Softens, compresses, powders, and deforms faster | Longer service life means more stable acoustic results and lower replacement costs. |
| Application suitability | Wall & Ceiling Soundproofing, HVAC duct lining, marine, OEM acoustic enclosures, architectural acoustics | Primarily bedding / cushioning, incorrectly marketed as acoustic foam | NeoFill-HD is built for compliance-driven, performance-critical installations. |
Aural Exchange is Asias leading exporter of Nankarrow NeoFill-HD Ultra High Density Acoustic Foam with Activated Carbon to top importers and distributors worldwide. With a strong export presence in Brazil, France, Germany, Italy, the Netherlands, Oman, Portugal, Saudi Arabia, South Africa, Thailand, the United Arab Emirates, the United Kingdom, the United States, Sri Lanka, Vietnam and Qatar, as well as major import markets such as China, India, Australia, Mexico, and Canada, Aural Exchange has built a solid reputation for reliability and consistency. Backed by consistent monthly production capacity, supported by a strategic factory network across South Asia, we ensure fast, efficient, and cost-effective deliveries to our global partners. Known for quality, innovation, and dependable service, Aural Exchange is the trusted choice for buyers seeking to import Nankarrow NeoFill-HD Ultra High Density Acoustic Foam with Activated Carbon for acoustic, commercial and industrial applications.
Naveen Srinivasan –
Used NeoFill-HD instead of regular fill and the panels feel more solid and professional. Worth the extra rupees if quality matters.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Yash Joshi –
Received in Pune within 3 days and used it for premium panels in my mixing room. Very good density and stays in place without sagging.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Pratik Gaikwad –
Ashutosh helped me figure out what I needed and suggested NeoFill-HD for better absorption. Bit expensive but the difference is noticeable in my voice recording booth.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Puneet Agnihotri –
I’ve put the panels up directly – no frame or fabric needed. The panels were so heavy I was worried if the pins will hold them, but the Propins are holding up fine so far. Some fine black powder initially fell from this during installation, but the company explained that this is due to the large amount of activated carbon in the panels. The performance is truly amazing.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Anurag Patel –
Past 2 years i am into hifi hobby. Spent lot money went several upgrades . Always I felt something not right. I saw lot of videos about advantages of acoustic room treatment but never tried because they do not look good in my living room. Finally just tried to improve room sound rather than swapping components. With the neofill panels there is more weight to vocals, mids are clear and even highs got their body. music is no more busy. Big improvement is image become centre and more separation from left and right. This is may be due echo reduced from back walls. I am totally using 8 panels covered with fabric.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal