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Digital material passports - SonaSpray

Sustainability By Alex Mar Morales, Senior Sustainability Consultant – 31 October 2023

Collage of SonaSpray product examples


Head and shoulders shot of Alex against a marble wall wearing glasses and a jumper

Alex Mar Morales

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Gilles in a white shirt in front of a white marble effect wall

Gilles Alvarenga

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This is part of the 'Unlocking sustainable designs through digital material passports' exhibited at The Summit — BE-ST Fest '23.

An acoustic spray made from outfire 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. It can be applied directly onto any flat or curved surface and comes in a variety of different colours.

Installed by ISO 14001 certified in-house operatives, SonaSpray fcx contributes towards many sustainable design and health certification systems. This includes BREEAM, SKA, Living Building Challenge and adds up to 17 points towards the LEED rating of a project.

The acoustic plaster achieves M1 certification as Low Emitting Building Materials.


Product Name: Sonaspray

Product Site: SonaSpray K-13 | Acoustic Spray | Oscar Acoustics (

Supplier: Oscar Acoustics

Material Origin

  • Raw Material Sourced:
    United Kingdom
  • Manufacture Site:
    Kent, UK
  • Biogenic Content (i.e. natural material content/sequestered carbon info):
  • Recycled Content:

Embodied Carbon:

  • Embodied Carbon Value
    Upfront Embodied Carbon: 0.01178 kgCO2e/m2

    Product Lifecycle Embodied Carbon: 0.01179 kgCO2e/m2

    Life Span: 75 years

    Product EPD is available online

Circularity, to cover aspects like:

  • Takeback schemes:
    None specified
  • Reuse Potential:
  • Warranties:
    Not Specified

Health & Wellbeing

  • Material Emissions:
    Minimal VOC Emissions (Third-party verified)
  • Material Content:
    Minimal VOC Content (Third-party verified)
  • Ingredient Transparency:
    Disclosed ingredients: Cellulose fibre (Wood, cotton, hemp), and water-based adhesives (Third-party verified)
  • Hazardous Materials:
    None found (Third-party verified)


  • Carbon Neutral Certified by Positive Planet
  • M1 certification
  • GreenGuard Gold
  • Cradle-to-Cradle Certified Gold
  • ISO-4001 certified

What is a digital material passport?

A material passport is a digital document listing all the materials that are included in a product or construction during its life cycle in order to facilitate circularity decisions in supply chain management at the end of the building life.

At Cundall, we want to create a passport for materials and products that will also provide information before its use, so designers and contractors have a better understanding of the materials and their impact on the embodied carbon and health well-being of a project, facilitating the inclusion of the best low carbon and healthy materials that align with their design.