Sonaspray FCX

Acoustic Decorative Finish for Excellent Building Acoustics

A visually beautiful room may not be a pleasurable place to spend time due to poor acoustics. Hard flat surfaces such as wooden floors and plastered walls reflect sound thereby increasing and amplifying noise levels within the space resulting in poor building acoustics and sound quality.

SonaSpray fcx is a one coat acoustic decorative finish with an attractive flat lightly pitted surface. It is used as an alternative to SonaSpray fc when a flat finish is required. SonaSpray fcx is typically applied at 10<12mm thick onto walls as often as ceilings due to it’s resilient finish. It is spray applied and will conform to any surface shape providing that the surface curvature will allow finishing with a trowel. The high performance adhesive will bond to virtually all common construction materials including plaster, wood, metal and concrete. Some surfaces [water stained ceilings, wood and oxidised metal] will require sealing to prevent migratory staining into the SonaSpray fcx finish.      

Carbon Neutral – Low Embodied Energy – Good for the environment – Recyclable Safe recycled natural cellulose fibre. Future reconstruction of buildings may require removal of SonaSpray, it can be recycled or disposed of as a non-special waste – your local authority environmental department will give advice on recycling.

Technical Structure

Acoustic DATA:
SonaSpray fcx installations are tailored to meet your specific project building acoustics need. There is a choice of finish, you may select colour and acoustic performance, special colours can be manufactured for larger installations or for most applications the standard white RAL9010 finish can be refinished with water based paint. SonaSpray fcx may be applied at variable thicknesses and areas to provide designed acoustic ambience. It is spray and trowel applied building to the full thickness in one application.

Test DATA certified by TNO Technical University Delft NL. Tests were on a solid substrate, a panel substrate with air space behind the panel will change absorption; normally there is improved absorption at low frequency giving further flexibility in the design of building acoustics.

Thermal DATA: 
SonaSpray insulates by creating dead air spaces macroscopically between and within the hollow cellulose fibres.

Mass:    
Dry weight 4.50kg/m2 at 20mm thick.

Bonding to Substrate:  
SonaSpray fcx can be applied to virtually any substrate; some surfaces may need priming to control suction. Old surfaces may need a barrier coating to prevent staining from leaching out of contaminants while the surface is wet.  Fully cured SonaSpray fcx will not only improve the building acoustics but improve the strength of the substrate.

Condensation Control:  
For indoor swimming pools SonaSpray fcx aids in condensation control. The proper combination of SonaSpray fcx and ventilation prevents condensation on metal, concrete and other surfaces. SonaSpray fcx actually reduces ventilation requirements, saving in both the ventilation equipment cost and operating costs.

RH Control: 
SonaSpray fcx is a natural humidity moderator. At times of increasing humidity SonaSpray fcx will absorb large amounts of water vapour. When the humidity drops SonaSpray fcx will exhale water vapour and maintain a balance. This characteristic promotes a healthy atmosphere.

Durability:  
The adhesive used with SonaSpray fcx provides a strong, durable and resilient bond.  When fully cured the surface strength of old plaster will typically improve.

Where to use: 
Any interior space requiring improved building acoustics; SonaSpray fcx can be quickly and effectively applied to most prepared surface and construction configurations helping to achieve minimum working down-time in existing structures with abilities to meet critical deadlines in new construction.  SonaSpray fcx trowelled finish  has a durable flat pitted surface and is suited to walls and ceilings in restaurants [see photos], offices, public buildings, hotels, shopping complexes, conference rooms, large domestic rooms and indoor pools.

Fire Performance Ratings:  
UK Fire test by Warrington Fire Research:
Class 1 to BS476 Part 7
Class 0 to BS476 Part 6

Maintenance:
SonaSpray fcx can be over-painted or applied with additional coats of SonaSpray. Small damage can be repaired by hand. If SonaSpray fcx 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.