
BASWA Colours | Bespoke Tinted Seamless Acoustic Plaster Finishes
Arthur Acoustics provides specialist colour matching, sample development, and certified UK installation of BASWA Colours, allowing architects and interior designers to specify seamless acoustic plaster ceilings and walls in virtually any shade. Rather than painting over an installed ceiling—which seals micropores and permanently destroys sound absorption—BASWA Colours are factory-tinted using pure mineral pigments blended directly into the natural marble-sand plaster, preserving full Class A acoustic performance alongside rich, uniform colour depth.
Why Architects and Designers Choose BASWA Colours
Architectural interiors increasingly move beyond stark white ceilings toward warm neutrals, deep dramatic tones, and cohesive monochrome palettes. BASWA Colours gives design teams complete chromatic freedom without sacrificing acoustic comfort or monolithic visual continuity.
-
Factory Mass-Tinted Mineral Pigments. Colour pigments are mixed directly into the plaster batch during Swiss manufacture rather than applied as a surface paint, ensuring the pores remain completely open to sound waves.
-
Unlimited RAL, NCS & Paint Brand Matching. Match virtually any NCS or RAL reference, or supply a physical swatch from leading architectural paint collections for precision spectrophotometer colour matching.
-
Crisp Architectural White as Standard. Supplied in classic natural marble white (~NCS S 0500-N) for bright, light-reflective interiors, or custom-tinted to order.
-
Compatible Across Smooth & Textured Finishes. Available across 0.7 mm Base, 0.5 mm Fine, and 0.3 mm Top marble-sand grades as well as BASWA Textures concrete and clay finishes.
-
Optional BASWA Shine Metallic Accents. Blend acoustically transparent BASWA Shine mineral flakes in gold, silver, or bronze into tinted plasters for subtle surface luminosity.
-
Non-Combustible & 100% VOC-Free. Tinted mineral plasters retain their Euroclass A2-s1, d0 non-combustible fire rating, solvent-free formulation, and BREEAM and LEED compatibility.
Why You Must Never Paint Over Acoustic Plaster
Conventional emulsion, matt, or masonry paints form a continuous polymer film across the ceiling surface. Even a single coat of standard paint bridges the microscopic gaps between marble grains, blocking sound waves from entering the acoustic backing panel and turning an absorbent ceiling into a hard, reflective surface.
With BASWA Colours, every marble grain is coated in mineral pigment prior to application. When our accredited Arthur Acoustics craftsmen hand-trowel the tinted plaster onto the ceiling, the open-pore structure remains intact—delivering authentic, through-coloured depth and full broadband sound absorption.
Bespoke Sample Matching & Batch Consistency
To ensure complete confidence on site, Arthur Acoustics manages a structured colour-approval workflow for every tinted project:
-
Physical Colour Sample Boards. Prior to full production, BASWA manufactures bespoke hand-trowelled sample boards in your exact chosen shade and grain size (0.3 mm, 0.5 mm, or 0.7 mm) for client and architect sign-off under project lighting.
-
Single-Batch Manufacturing. Full project quantities are produced within a single controlled factory batch to guarantee consistent tone across expansive ceiling spans.
-
Tinted Touch-Up & Maintenance Kits. Colour-matched repair compounds are supplied alongside project handover so any future localized scuffs can be seamlessly restored without affecting acoustics.
Ideal Applications for BASWA Colours
Integrating bespoke colour into monolithic acoustic surfaces unlocks creative possibilities across every sector:
-
Home Cinemas & Private Listening Rooms. Deep charcoal, midnight blue, and matte earth tones eliminate screen reflections while delivering studio-grade reverberation control.
-
Fine Dining Restaurants, Bars & Boutique Hotels. Warm terracotta, stone, and moody architectural hues create intimate atmospheres with calm, effortless conversation.
-
Commercial Workspaces & Brand Flagships. Aligns ceiling and wall planes with corporate brand palettes or biophilic interior schemes without visible acoustic baffles.
-
Heritage & Listed Interiors. Matches historic limewash, stone, and aged plaster tones sensitively within conservation projects.
Nationwide Specification & Installation by Arthur Acoustics
Arthur Acoustics supports your project from initial swatch matching and sample sign-off through to master hand-trowelled installation. Operating from our Henlow Specification Centre on the Bedfordshire and Hertfordshire border and our St Albans office, our certified teams serve projects across London, Cambridge, Oxford, Manchester, and throughout the United Kingdom.

Design Freedom Without Compromising Performance
Modern architectural spaces often demand more than just standard white surfaces. At Arthur Acoustics we believe that world-class acoustics should never dictate your colour palette. We provide bespoke, integrally tinted acoustic plaster finishes that deliver a high-performance Class A sound absorption ( up to 0.95) in any hue you envision.
Our systems, including BASWA Phon, are custom-dyed to ensure the pigmentation is consistent throughout the material, providing a depth of colour that remains vibrant and stable over time.


Bespoke Colour Matching for Luxury Brands
We understand that precision is paramount in luxury interiors. Our technical laboratory can accurately match our acoustic plaster systems to almost any architectural colour standard or designer paint library, including:
-
Designer Libraries: Full matching for Farrow & Ball, Little Greene, Benjamin Moore, Paint & Paper Library, and Dulux Heritage.
-
Standard Systems: Complete range of RAL Classic and NCS (Natural Colour System) codes.
-
Physical Samples: We can provide a visual match for physical swatches or existing interior finishes to ensure a seamless transition across different substrates.
The Technical Difference: Integral Tinting vs. Painting
Unlike traditional walls, acoustic plaster must remain porous to absorb sound energy. Simply painting over an acoustic surface with standard emulsion will "seal" the pores and ruin its acoustic performance.
-
Integral Tinting: We add specialised pigments directly into the marble plaster finish before application.
-
Acoustic Integrity: This method ensures the surface remains breathable and sound-transparent, maintaining the system’s high NRC ratings.
-
Seamless Finish: Resulting in a monolithic, uniform colour across vast ceilings, domes, or vaulted surfaces without visible joints.
Request Custom Colour Samples or Visit Our Showroom
View our library of tinted BASWA Colours and BASWA Shine sample boards at our Henlow showroom, or send us your RAL, NCS, or paint reference to commission bespoke samples.
Call us on 01462 534610 or email baswa@arthuracoustics.co.uk to speak with an acoustic specialist.
