Seamless Acoustic Spray Plaster Systems

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High-Performance, Rapid-Application Monolithic Sound Absorption for Expansive Commercial and Luxury Residential Architecture

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Welcome to Arthur Acoustics, the United Kingdom’s premier specialist contractor for high-performance architectural acoustics, turnkey sound insulation, and premium interior finishes. Modern design principles consistently embrace spacious, minimalist aesthetics featuring vast glass partitions, polished stone, exposed masonry, and sweeping monolithic plaster ceilings. While visually breath-taking, these large-scale volumes function as aggressive acoustic mirrors—generating extensive sound reverberation and distracting echo that render communication difficult and fatiguing.

Historically, correcting these multi-host audio issues required breaking up design lines with hanging baffles or industrial grid systems. Our Seamless Acoustic Spray Plaster Systems eliminate this limitation entirely. Applied via high-velocity mechanical spraying arrays directly onto stable substrates, this specialised microporous cellulose and mineral compound delivers a perfectly joint-free, marble-smooth or delicately textured finish that mimics traditional drywall, yet invisibly absorbs up to 100% of unwanted internal echoes.

 

 

The Advantages of Acoustic Spray Plaster

Unlike layered trowel-only systems that are highly labor-intensive over vast surface areas, acoustic spray plaster systems are engineered for rapid, flawless deployment across major architectural structures:

• Flawless Monolithic Integration: Our spray-applied systems eliminate visible seams, control joints, or gaps across expansive ceiling voids. It flows beautifully around structural columns, bulkheads, downlights, access panels, and complex curved or vaulted geometric forms.

• Class A Sound Absorption: Engineered with an incredibly dense, open-pore microporous network, sound waves pass directly into the plaster matrix rather than bouncing back off the surface. Available in calibrated depths from 15mm to 40mm+, our spray systems capture up to 90%–100% of internal room noise, achieving a certified Class A Sound Absorption Rating (0.90 to 1.00 NRC).

• Thermal Efficiency & Structural Weight: Beyond pristine acoustics, the cellulose and mineral composition introduces natural thermal insulation properties that minimise heat loss through large concrete ceiling slabs. Simultaneously, the cured layer is exceptionally lightweight, imposing negligible structural load on your building’s framework compared to traditional multi-coat sand and cement renders.

 

 

Technical Specifications & Textural Finishes

Arthur Acoustics applies the complete suite of international spray plaster configurations to satisfy your project's unique light reflectance and interior aesthetic targets:

• Texture Profiles:

  • Ultra-Smooth Smooth Finish: Mechanically sprayed and lightly cross-trowelled by our master artisans to deliver a perfectly smooth, fine-grain monolithic ceiling that handles harsh grazing sidelight flawlessly.

  • Fine Textured / Suede Finish: Left in its natural sprayed state, this creates a beautiful, velvet-like texture that diffuses light beautifully across corporate lobbies and high-traffic office spaces.

  • Industrial Coarse Finish: A more pronounced, organic texture designed specifically to mimic stone or raw concrete surfaces, highly favoured for industrial loft conversions and brutalist commercial designs.

• Color and Styling Diversity: Our natural spray systems are supplied in brilliant white stone or neutral off-white. However, the compound can be fully custom-tinted to match any global design palette, including unlimited RAL and NCS colour charts, ensuring the ceiling matches your brand identity or home decor perfectly.

• Life-Safety & Indoor Environmental Quality: The cured system achieves a strict, commercially certified Class 0 / Euroclass B-s1, d0 Fire Classification for optimal flame retardancy. It features a high light reflectance value of up to 91%, holds certified mould-resistant properties, and carries premium eco-credentials for zero VOC emissions.

 

 

Our Professional Mechanical Application Process

Achieving a perfectly level, high-performance acoustic spray surface requires rigorous surface preparation and specialised machinery. The Arthur Acoustics installation team handles the entire technical workflow on-site:

1. Substrate Preparation & Masking: We inspect the base concrete or airtight drywall grid to ensure it is clean and stable. We then thoroughly mask all adjacent walls, glass panels, windows, and floors to protect your interior.

2. Primer Optimization: A specialized binding primer is applied to control the substrate's porosity and guarantee a permanent chemical bond.

3. High-Velocity Mechanical Spraying: Our technicians utilize specialized pump machines to apply the acoustic plaster uniformly across the ceiling area in calibrated, successive layers to build the targeted acoustic depth.

4. Artisanal Level Tuning: For smooth finishes, our master plasterers carefully hand-trowel the fresh layer, ensuring absolute structural flatness without compressing the open pores that capture sound energy.

 

 

National Project Delivery & Regional Hubs

From our centralised head office, technical factory, and material showroom in Henlow, our specialized internal installation teams manage turnkey acoustic spray plaster installations across the UK's primary commercial and high-end residential hubs:

• London & Greater London: Active daily supplying seamless monolithic ceilings for premium corporate offices, museums, shopping complexes, and grand townhouses in Mayfair, Kensington, Soho, the City, and Canary Wharf.

• Home Counties (Herts, Beds & Bucks): Direct regional service throughout Hertfordshire (St Albans, Radlett), Bedfordshire (Bedford, Luton, Henlow), and Buckinghamshire (Milton Keynes, Beaconsfield).

• Cambridgeshire: High-performance architectural acoustic surfaces for research hubs, open-plan university halls, and modern eco-complexes across Cambridge.

• Bristol & South West: Turnkey architectural installations for creative agency workspaces, galleries, and waterfront developments in Bristol and Bath.

• Manchester & The North West: Transforming echo-prone, expansive environments into quiet, balanced spaces across Greater Manchester, Salford MediaCityUK, Alderley Edge, and Wilmslow.

 

 

Discuss Your Project Parameters with Our Team

Ready to introduce seamless, high-performance sound absorption across your upcoming commercial build or luxury residence? Contact the technical engineering team at Arthur Acoustics to arrange a precision site measurement, review structural plans, or request a physical texture sample.

• Head Office & Showroom: Unit 13 Kingfisher Park, Henlow, Bedfordshire, SG16 6DD

• Telephone: 01462 534610

• Email: info@arthuracoustics.co.uk