SonaSpray fc in Oscar Acoustics’ new HQ – The Oscar Innovation Centre. ©Hufton+Crow.

SonaSpray fc sound absorber spray

a lightly textured and seamless acoustic finish

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Sownd Certified Oscar Innovation Centre. Oscar Acoustics HQ & product showroom. ©Hufton+Crow.

decorative sound absorber spray

SonaSpray fc is a fire-rated, one-coat sound absorbing spray that delivers seamless, decorative sound absorption for a wide range of interior spaces. With a lightly textured, firm finish, it absorbs sound energy to reduce reverberation and enhance acoustic comfort.

Its versatile application can be spray-applied to almost any clean surface shape including barrel vaults, domes, corrugated decks, and pan construction. The sound absorber also bonds to common substrates such as plaster, wood, metal, and concrete.

Installed by our in-house specialist teams, SonaSpray fc is available nationwide across Great Britain.

Ready to improve the acoustics of your next project? Contact our acoustic experts to discuss your requirements.

A window ledge with two stripey cushions and a teapot on it, there are many trees outside.

fire rated sound absorber spray

SonaSpray exceeds the latest fire requirements set under the updated Fire Safety: Approved Document B.

Its Class 0 to BS476 & B-s1,d0 fire rating provides significant benefits by providing little to no smoke and absolutely no droplets, assisting in the safe escape of occupants. View full SonaSpray fire ratings.

Important: Always insist on obtaining a copy of the fire test report before using a product.

the sustainable sound solution

More than just a sound absorber, SonaSpray fc is a commitment to healthier buildings and sustainable design. SonaSpray is manufactured to meet the highest environmental standards and indoor air quality and it supports a project’s goals for well-being, carbon reduction, and green building certification. Made from fire-treated, recycled paper and other rapidly renewable materials, SonaSpray fc helps lower the carbon footprint of a project by sequestering carbon for the lifetime of the structure or building.

SonaSpray fc also contributes to an impressive range of sustainable building certifications, including BREEAM, WELL, SKA, the Living Building Challenge, and adds up to 17 points towards the LEED rating of a project.

The SonaSpray range meets the highest standards for indoor air quality, ensuring compliance with global benchmarks for low VOC emissions including: GREENGUARD Gold Certification, CDPH/CA Section 01350 compliance, M1 Low Emitting Materials rating and Cradle to Cradle Certification.

Please see ‘product downloads’ tab below for certificates and other supporting documents.

SonaSpray fc used throughout the five-star Hilton London Bankside near Tate Modern & The Shard. Jack Hardy Photography.
SonaSpray fc acoustic ceiling spray in Hilton London Bankside Hotel events space. Jack Hardy Photography.

SonaSpray fc advantages

  • All SonaSpray projects qualify for Bronze level – Sownd Certification – an inclusivity certification for ensuring inclusive spaces for those with hearing or visual impairments and neurodiversity. For more information please visit https://www.sownd.co.uk/.
  • Class 0 to BS476 & B-s1,d0 fire rating (full fire test reports available on request). View full fire ratings.
  • Absorbs sound energy instead of reflecting it, reducing reverberation times and overall noise levels.
  • Achieves M1 certification for Building Materials emissions.
  • Contributes up to 17 points to the overall LEED (Leadership in Energy and Environmental Design) rating of a project.
  • Product specific Environmental Product Declarations (EPDs) to ISO 14025 and Health Product Declarations (HPDs). See product downloads tab below.
  • Cradle to Cradle certified.
  • The water-based adhesive provides a strong, durable and resilient bond.
  • Sound absorber an be applied to virtually any substrate configuration.
  • Sprays directly onto plasterboard, concrete, steel sheet and most other surfaces.

SonaSpray fc
technical specifications

Our SonaSpray range exceeds the latest fire requirements set under the updated Fire Safety: Approved Document B.

European fire test by Efectis Nederland:
B – s1, d0

UK fire test by Warrington fire research:
Class 0 to BS476 Part 6
Class l to BS476 Part 7

Full fire test reports available on request. Important Note: Always insist on obtaining a copy of the fire test report before using a product.

Its Class 0 to BS476 and B-s1,d0 fire rating provide significant benefits over the new Approved Document B requirements by providing little to no smoke and absolutely no droplets, assisting in the safe escape of occupants. Click here for more information on the fire properties of SonaSpray and the new Approved Document B requirements.

* NRC calculated from EN 20354 tests.

Depth125Hz250Hz500Hz1kHz2kHz4kHzNRCαwClass
8mm0.060.170.530.710.821.00  0.56*0.50D
12mm0.110.340.850.941.041.04  0.79*0.65C
16mm0.080.360.900.960.970.92 0.80*0.65C
20mm0.080.360.900.960.970.92 0.80*0.65C
19mm onto ribbed deck0.170.580.910.890.870.840.80A

The above acoustic data is tested as worst case, onto concrete. Applying onto other substrates such as plasterboard with air gaps behind or profiled metal soffits, primarily increases absorption at low frequency which can increase absorption classes.

SonaSpray can achieve any class as we can adjust acoustic performance by increasing and decreasing the material depth to suit the acoustic requirement and budget.

Please contact Oscar Acoustics’ technical department for free assistance.

The SonaSpray range contributes towards many sustainable design and health certification systems including BREEAM, SKA, Living Building Challenge and adds up to 17 points towards the LEED (Leadership in Energy and Environmental Design) rating of a project.

The SonaSpray range achieves M1 certification as Low Emitting Building Materials. This is the best possible classification.

SonaSpray finishes are compliant with CDPH/ CA Section 01350 and are GREENGUARD Gold Certified for Indoor Air Quality. GREENGUARD Gold Products are now confirmed to show compliance with BREEAM rating system HEA Indoor Air Quality and ensure that a product has met some of the world’s most rigorous and comprehensive standards for low emissions of VOC’s into indoor air. The range is also covered by an Environmental Product Declaration in accordance with ISO 14025 and meets the requirements of the Living Building Challenge and LEED.

Achieves Cradle to Cradle and contributes towards satisfying many features under the WELL Building Standard®

Made of fire treated, recycled paper and other rapidly renewable natural resources, SonaSpray can effectively lower the carbon footprint of the building project by sequestering rich stores of carbon for the life of the structure or application.

View Sustainability page

Oscar Acoustics have taken steps to reduce our environmental impact and demonstrate our commitment to protecting the environment by achieving ISO 14001 certification.

The SonaSpray range is manufactured by International Cellulose Corporation (ICC) to the ISO 9001 quality management standard. 

  • SonaSpray is manufactured by ICC to ISO 9001.
  • Installed using a four stage Oscar Acoustics quality assurance plan.
  • Materials, equipment, labour and installation only to be provided by ICC’s sole licensee for Great Britain – Oscar Acoustics.

From specification to installation, everything is kept in-house. We have created our own purpose-built training facility in our Oscar Innovation Centre HQ. The ‘SonaSpray Training Academy’ provides a controlled environment for our teams to build their skills with our Head of Quality Control. This ensures a high-quality and long lasting acoustic finish every time.

 

  • BIM Objects available for every product.
  • All products are included within all current NBS software.
  • Recessed and surface mounted items possible – see website for more information.
  • Standard detail drawings for most situations.
  • Bespoke detailing solutions possible.

Oscar Acoustics offer a ‘Detailing of acoustic finishes’ CPD:
https://www.oscar-acoustics.com/cpd/

This presentation includes:

  • The biggest myths architects are still being told about reverberation, including frequencies and Class A absorption.
  • Live drawing detailing for avoiding common pitfalls and achieving a long-lasting acoustic finish.
  • Things to be aware of with all acoustic finishes.

An introduction to the pioneering ‘Sownd Certification’. A new global performance-based standard, designed to formally classify buildings as audio-inclusive.

Our state-of-the-art HQ, the Oscar Innovation Centre, in Halling, Kent, showcases its SonaSpray range in a real-life setting.

By booking a tour you will get a real sense of how the SonaSpray can visually and acoustically transform your next project. Book a tour for yourself, your design teams and potential clients to view SonaSpray products in situ and see and hear them come to life.

Only 30 minutes from London by train, the Oscar Innovation Centre is located in Halling, Kent.

Book a tour here: https://www.oscar-acoustics.com/book-a-tour-cpd/

SonaSpray is excellent at thermally insulating by creating macroscopic air spaces between and within the cellulose fibres. U-Values can be adjusted to your projects exact requirements by adjusting the spray material depth.

  • Dry Weight of SonaSpray fc per 10mm thickness = 1.60 kg/m2
  • Wet Weight of SonaSpray fc per 10mm thickness = 2.93 kg/m2
  • Dry Weight of SonaSpray fc per 20mm thickness = 3.20 kg/m2
  • Wet Weight of SonaSpray fc per 20mm thickness = 5.86 kg/m2

SonaSpray fc sound absorber can be applied to virtually any substrate.

Some surfaces may need priming to control suction. Old surfaces or boards with high recycled content, may need a stain barrier coating to prevent contaminants from leaching out of whilst the surface is wet. Fully cured SonaSpray fc can not only improve the architectural acoustics but improve the strength of the substrate.

Bond Strength:SonaSpray fc>600 psf ASTM E-736
Compression Strength:SonaSpray fc>400 psf ASTM E-761

The water-based adhesive used with SonaSpray fc sound absorber provides a strong, durable and resilient bond. Fully cured SonaSpray can not only improve the architectural acoustics but improve the strength of the substrate.

Recessed services e.g. spot lighting will require a halo spacer to match the material depth. Oscar Acoustics manufacture and install stainless steel halo spacers (drawing available) to the same size as the hole cut out.

Stop beads may be required around openings which again we can supply and install.

Specially designed access hatches are also available through Profab, enabling the SonaSpray to continue across the hatch door. Problems can arise from using other hatches. These items are at extra cost and are to be purchased direct from the Profab. Please contact Oscar Acoustics for details and item code. Surface mounted fittings e.g. hanging/pendant lights will require pattresses to match the material depth.

Please contact Oscar Acoustics for further advice.

Please Note: 90% of flangeless fittings do not work properly with any acoustic finish. If you are specifying a flangeless fitting, please contact Oscar Acoustics for advice.

SonaSpray fc sound absorber can be quickly and effectively applied to most prepared surfaces and construction configurations. This allows minimum working down time in existing structures with abilities to meet critical deadlines in new construction.

SonaSpray fc has a fine surface texture and is suited to ceilings of offices, restaurants, receptions, lecture theatres, lobbies, classrooms, swimming pools etc. SonaSpray is an excellent sound absorber for any indoor space with a noise problem.

Please note that it is important not to use moisture resistant plasterboard as this can cause staining of wet applied products. Stain barrier primers and paints can be used to prevent this. Please consult Oscar Acoustics for more information.

When using plasterboard as the substrate, a minimum of 12.5mm thick plasterboard, installed to British Gypsum specification should be used.

SonaSpray fc sound absorber can be over-painted or applied with additional coats of SonaSpray. Small areas of damage can be repaired by hand. Maintenance of SonaSpray is minimal.

If SonaSpray is disturbed or damaged so that fibre is released into the atmosphere, the resulting contamination is harmless.

Maintenance work can be undertaken while the building is occupied. Please refer to COSHH data for detailed product analysis.

Please note: Some surfaces, such as water stained ceilings, wood and oxidized metal, will require sealing to prevent migratory staining of the SonaSpray finish.

Standard Colours: (s) = Stock (ns) = Non-Stock

SonaSpray fcx: Arctic White (s), White (ns)

SonaSpray fc: Arctic White (s), White (ns), Black (ns)

SonaSpray K-13 Special: White (s), Light Grey (s), Grey (s), Dark Grey (ns), Black (s), Beige (ns), Tan (ns)

SonaSpray K-13: White (s), Light Grey (s), Grey (s), Dark Grey (ns), Black (s), Beige (ns), Tan (ns)

Bespoke colours are manufactured to order. Minimum order quantities apply, and square meterage is dependent on the product and thickness of spray. Please send us your colour requirement using a RAL, RAL Design or Dulux paint reference and we will respond with quantity, price and colour samples.

Recycled content values for SonaSpray fibres (excludes water-based adhesive):

Pre-Consumer recycled content: Minimum 80%

Recycled content values as installed (consisting of both fibres and water-based adhesive):

Pre-Consumer recycled content: Minimum 50%

SonaSpray is a permanently installed interior finish material that is designed for the useful life of a building project. At the end of its useful life, the material may be removed and repurposed into thermal cavity fill insulation or for other recycling applications.

Future reconstruction of buildings may require the removal of SonaSpray. It can be recycled or disposed of as a non-special waste and your local authority environmental department will give advice on recycling.

Oscar Acoustics can take SonaSpray back and have it milled into thermal cavity fill.

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Discover the versatile application capabilities of SonaSpray fc acoustic spray through one of our high-resolution image packs, showcasing a range of environments.

Discover SonaSpray fc for:

  • Commercial Spaces: Offices, boardrooms, reception areas.
  • Education: Classrooms, lecture theatres, libraries.
  • Hospitality: Restaurants, bars, hotels, music venues.
  • Industrial: Warehouses, manufacturing plants, big sheds, showrooms.
  • Cultural buildings & public spaces: Museums, galleries, theatres.

listen to the difference

Experience the dramatic acoustic transformation that SonaSpray fc can deliver with this amazing before and after video. In this short before-and-after comparison, you’ll hear how our sound absorbing spray reduces reverberation and enhances sound clarity, creating calmer, more comfortable interiors.

Whether you’re designing offices, educational spaces, or public venues, SonaSpray helps you achieve both aesthetic and acoustic excellence. Press play to hear the difference for yourself.

Ready to specify SonaSpray? Contact our team to request test data, discuss colour options, or get expert advice on your project.

SonaSpray fc projects

Hard Rock Hotel, London
Hospitality

Hard Rock Hotel, London

SonaSpray fcx, SonaSpray fc

SonaSpray fcx & fc give clarity to speech & music in Londons new Hard Rock Hotel.

Oscar Acoustics’ new HQ – The Oscar Innovation Centre, Halling, Kent. ©Hufton+Crow.
Office

the Oscar Innovation Centre

Oscar Elite, SonaSpray fcx, SonaSpray fc, SonaSpray K-13 Special, SonaSpray K-13, Oscar Evo-Blade

Oscar Acoustics leverages its suite of class-leading acoustic finishes to create a purpose-built HQ and show home.

large open plan office entrance hall with stone floors, large feature lighting and brown seating booths.
Office

Civic House

SonaSpray fc

A spray on decorative sound absorber for stylish reception acoustics

Blavatnik School of Government
Education

Blavatnik School of Government

SonaSpray fc

Carbon neutral, low embodied energy and environmentally friendly acoustic treatment for universities and schools.

Hilton London Bankside Hotel
Hospitality

Hilton London Bankside Hotel

Oscar Elite, SonaSpray fc

SonaSpray & Oscar Elite used throughout ballroom & lobby achieving excellent hotel acoustics without design compromise.

University College Acoustics
Education

University College Acoustics

SonaSpray K-13 Special

SonaSpray for quality college acoustics

University of Leicester
Education

University of Leicester

SonaSpray fc

SonaSpray acoustic treatment for Leiscester University's student union

what our customers say

Quote Icon

“Our experience over the years teaches us that architecture and interior design are so much more than just looks. We consider every factor with each project we work on, and acoustics is no exception. We knew we needed a premium acoustic product that would also work with our designs, which is why we chose Oscar Acoustics.

The acoustics here are absolutely amazing – those speakers on the stage are stadium quality!”

David Mason, Director of Hospitality at Scott Brownrigg, Hard Rock Hotel, London

“Having used SonaSpray on several other projects, we knew how effective it was at reducing office noise. It’s quickly become our go-to product and our clients are always happy to follow our recommendations due to the huge difference it makes, both in open-plan areas and cellular spaces.

When we used a competitor product, we noticed a drop in standard and only SonaSpray delivers both in terms of aesthetics and sound management. The finish on the project was exceptional and hides any imperfections, making it as visually strong as it is at reducing noise.”

Mariachiara Dal Pozzo, Associate Director, tp bennett

“We had been running out of ideas on how to improve noise levels due to reverberation off our high ceilings during our busy monthly Dementia Café, when someone recommended Oscar Acoustics. Ben and his team responded quickly and recommended an application of their SonaSpray product. The installation was quick, just a couple of days, and the team were professional, friendly and cleaned up after themselves really well.

The difference was noticed immediately and at the next Dementia Café we didn’t have any patients complain about noise levels, meaning that more patients and carers were able to access support and advice.

Thank you so much to Oscar Acoustics for your support, as you can see your work has meant that this space is now much more accessible and user friendly for people with Dementia and we can continue to ensure our service supports as many people as possible.”

Heart of Kent Hospice – SonaSpray

“I am writing to congratulate your company for the success achieved in the reduction of the noise level in our school dining room when 200+ children are having their lunch.

Prior to the application of SonaSpray, the noise level was deafening, and now it is possible to talk to ones neighbour in a normal voice when lunching at the staff table…”

D.K.Emmett, Bursar, Fulham Prep School – SonaSpray fcx

contact us

mail@oscar-acoustics.co.uk

+44 (0)1474 854902

Oscar Engineering Ltd,
Oscar Innovation Centre,
Formby Road, Halling,
Kent,
ME2 1FQ

Mon – Fri 08.00 – 17.00


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