Product Description
For premium projects where excellent sound absorption is required along with minimum weight, we offer Nankarrow GeoFill™ polyester wadding acoustic rolls and boards. These sheets are created from natural polyester fibers. These are known for their durability and reliable performance. Nankarrow GeoFill™ is used for manufacturing acoustic panels, as backing material for drop ceilings, walls, and floors in premium recording studios, offices, and in the loudspeaker building industry.
GeoFill™ is made from natural polyester fiber thermally bonded to provide the rigidity and porosity required for broadband acoustic absorption. No chemicals are used during manufacture. These high performance acoustic polyester insulation batts help with reducing unwanted noise transfer through walls & ceilings to create quieter living spaces, for higher noise level situations, particularly suitable for media rooms or between floors. Nankarrow GeoFill is itch free, contain no Formaldehdye Binders, require no protective clothing to install, making them a safe insulation option for you & your family. Polyester Acoustic Insulation Batts also have a Zero Ozone Depleting (ODP) rating, contain negligible Volatile Organic Compunds (VOC’s) and 80% of the fibers that go into these polyester batts are recycled from plastic bags & other packaging materials, so they are safer for the planet too. GeoFill also meets the ASTM E84 standard for fire safety.
Nankarrow GeoFill™ Advantages:
- NRC 1 @ 50mm thickness
- Class B fire rated
- Chemical free
- Odour free, moisture-resistant, does not promote mold or fungi growth
- No binders used, leading to optimal air flow resistivity values
Nankarrow GeoFill™ Features:
- Material: 100% natural recycled thermally bonded polyester fiber
- GeoFill is certified by OEKO-TEX 100 Standard, meeting the human-ecological requirements presently established for baby articles.
- GeoFill does not irritate skin or eyes, it is humidity resistant and has no dust generation during handling.
- No chemicals are used during manufacture and is thermally bonded.
- Chemical free, itch free
- Formaldehyde free product, no odours
- Anti-microbial
- Density: 500 – 2000 GSM
- R-Value: 4-5 – 6.5
- Fire Rating: Class B under ASTM E84
- Function: High performance acoustic absorption, Excellent thermal isolation
- Material: 100% natural recycled thermally bonded polyester fiber
- Flame/heart-resistant, compressible, light weight
- Size: Custom – please select variant to see size
- Colour: Snow White
- Units in box: Custom
- A superior alternative to Soundsynth, Hiloft, and Nowofill polywool
Nankarrow GeoFill™ Applications:
- Infill for acoustic wall & ceiling panels
- Infill & backer for all kinds of drop ceilings and false ceilings
- Infill for Floating Floor (Slabs only)
Nankarrow GeoFill™ Density for Acoustic Applications:
GeoFill is superior to both rockwool & glasswool, because its fibers are not bound together with any chemical binder so they do not clump together. This allows extremely low flow resistivity values which helps you achieve the most linear absorption curve. This in turn helps create a natural sounding acoustic environment. Based on air flow resistivity values, we recommend the following thickness of GeoFill for your acoustic panels
- For 2″ to 4″ thickness use GeoFill 40 kg/m3 slabs (Air Flow resistivity 12800 Pa. s/m²)
- for 6″ to 8″ thickness use GeoFill 20 kg/m3 slabs (Air flow resistivity 9600 Pa. s/m²)
- for 10″ and more thickness use GeoFill 10kg/m3 (Air flow resistivity 6200 Pa. s/m²)
GeoFill can be used in various places like Recording studios, Home theaters, Rehearsal rooms, Auditoriums, Dubbing rooms, Hotels, Server rooms, Restaurants, Schools & Colleges, Hospitals, Voice Over (VO) Rooms, Commercial places, etc.
How to Use:
Due to its light weight nature, Nankarrow GeoFill™ can be directly placed inside, above or behind any kind of wall, ceiling, or floor panels. It can also be attached using Nankarrow ProPin™
| Frequency (Hz) | 75 | 125 | 250 | 500 | 1000 | 2000 |
|---|---|---|---|---|---|---|
| NRC | 0.57 | 0.61 | 0.68 | 0.84 | 0.97 | 0.99 |
Aural Exchange is Asias leading exporter of Nankarrow GeoFill™ OEKO-TEX Polyfill Acoustic Insulation Boards & Rolls 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 GeoFill™ OEKO-TEX Polyfill Acoustic Insulation Boards & Rolls for acoustic, commercial and industrial applications.















Kishore Sthalekar –
good quality product. using on advice of acoustic consultant and happy with fast service to my location in Nagpur
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Sarita Thomas –
bought on the recommendation of Ashutosh as he said this would be the safest product around children and pets. Fantastic quality and does a great job with sound absorption, Received product in excellent packaging through Bluedart, exactly one day after promised date.
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Shantanu M –
Good quality polyfill, received in good condition. Wanted to go for non-itchy absorbers for my HT, these are perfect.
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Shubh Trivedi –
Excellent DIY acoustic material, did my research and found similar polyfill is used by all the top global brands like Armstrong, Ecophon, Vicoustic, Knauf etc due to being recycled as well as chemical free. The results are fantastic. Using the 40kg slabs for my DIY bass traps and 20kg slabs for my absorption panels at first reflection points.
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R. Madhusudhan –
I am acoustic contractor with over 20 years experience in large scale projects auditoriums and cinemas. GeoFill is best new generation product to use instead of rockwool and glasswool. This is performing very good – chemical free and also fire safe. All certifications accepted by govt of India. Specified and being used in new parliament building interiors in New Delhi.
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Anshuman Singh –
ordered a good amount of this for a project and it arrived well packaged and well with in the time. would use again recommend. Non itchy and does not require gloves while handling, also as cheap as rockwool
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Ravi Kamath –
Was recommended this as the best acoustic infill for studio builds by renowned acoustic consultant John Sayers, since it does not have any binding agents, so the flow resistivity is very close to theoretical predictions. Worked great and delivered before time. We tested the density and thickness and they were as advertised. Overall a good experience working with Ashutosh and Aural Exchange.
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Subhash K –
This is fantastic product – chemical free and absolutely safe for use in home theatre. Slightly expensive but worth it. I was asked to avoid rockwool and glasswool. Quality 10/10 shipping time 7/10 (Came one day late), overall satisfied.
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Kaustubh Joshi –
These panels do an excellent job of absorbing unwanted echoes, yielding a clear, concise sound.
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Manish Gupta –
purchased these to make 4inch acoustic panels for my listening room. The 2000gsm boards arrived in perfect shape and were actually very clean and easy to work with. This is the safest product available in India for acoustic insulation and recommended by my acoustic consultant from UK. I covered my panels with natural jute fabric (not bought from here) and they perform very well. If you place these strategically to eliminate early reflection points, you will be surprised at the results you can attain. Everything just sounds so much cleaner and the ringing and flutter has been greatly if not completely reduced. Topped with the black fabric, the panels look amazing and blend in to my room very well.
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Kanishka Mathur –
I currently have 12 panels installed in my small HT room and have been experimenting for optimal results. So far I have primary reflections almost completely under control and now I’m creating bass traps for the corners. As I said, this particular brand and product (nankarrow geofill) is highly regarded in the audiophile community in my city. They confirmed that it is completely chemical free and does not use any binders, giving superior acoustic performance. You can’t go wrong!
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Deepti Jindal –
Found geofill while looking for non-fibrous and non-itchy product. Excellent quality and working well for absorbing sound.
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Kaushik Agrawal –
I purchased Geofill to make acoustic panels for my listening room. Placed 4 panels at the first reflection point to the sides of the listening position, they work beautifully to widen the soundstage and lessen unwanted mid / high reflection bounce off the side walls. I also placed 2 panels, 2 inches thick, behind the speakers on the front wall.
For front corner bass traps I am using same materials but these are 6 inches deep (used 3 panels per trap) and the bass performance in my room has improved nicely. This evens out the peaks and nulls in the room, especially since I dont like using EQ. Covered in fabric over wooden frames, they are light weight and blend in with room design nicely. Great product.
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Nirav Patel –
Great product at a great price! Cut one star because order arrived two days after delivery promise date.
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