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The natural choice

International Cellulose Corporation is the leading manufacturer of sustainable, spray-on thermal and acoustical finish systems. Consisting of natural, plant-based fibers and specialty water-based adhesives, these products are tailored to meet distinct thermal, acoustical, and design objectives for commercial building projects with an exceptionally low environmental footprint. Cellulose, the primary raw ingredient in our products, contains high levels of sequestered carbon stored within the material for the useful life of the application or building project.

Our products can be used to achieve high thermal R-Values, to help offset operational carbon loads, and provide exceptional acoustical performance to maximize usability and functionality within a space. In addition to acoustic and thermal performance, our products meet some of the world’s most rigorous and comprehensive standards for low emissions of VOCs into indoor air.



Cradle to Cradle Certified® Bronze

K-13, SonaSpray “fc”, and SonaKrete are Cradle to Cradle Certified® Bronze. Cradle to Cradle Certified® is the global standard for products that are safe, circular, and responsibly made.

*Excludes custom colors. Cradle to Cradle Certified® is a registered trademark of the Cradle to Cradle Products Innovation Institute.

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Product Transparency

Third-party certifications and declarations, including Health Product Declarations (HPDs), Environmental Product Declarations (EPDs), Cradle-to-Cradle, and GREENGAURD Certifications, are available for our products.

Transparency Reports published by Sustainable Minds are available in the Transparency Catalog.

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mindful Materials

Designed by leaders from across the industry, mindfulMaterials is a platform for sustainable and healthy materials. The Common Materials Framework (CMF) organizes hundreds of factors from relevant product certification and declaration programs into 5 categories of health and environmental performance. performance. Filtering by the CMF enables users to search by sustainability issues, as well as by certification or standard.

Common Materials Framework (CMF)

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Health Product Declaration (HPD)

Inventoried to 100 PPM in accordance with the Health Product Declaration (HPD) standard. International Cellulose Corporation is a member of the Health Product Declaration Collaborative (HPDC).

Download Our HPDs



Our products have achieved GREENGUARD Gold Certification in support of healthier indoor environments. GREENGUARD Certified products are certified to GREENGUARD standards for low chemical emissions into indoor air during product usage.

Download our GREENGUARD Certificates


Forest Stewardship Council® (FSC)

Choosing FSC-certified products helps protect the future of forests and the communities that depend on them. Our facility is FSC chain of custody certified, ensuring raw materials originate from well-managed forests, controlled sources, or reclaimed materials. Contact us for more details.

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Our products are the natural choice for green building projects. For sustainable design certification systems, such as LEED®, WELL Building Standard, BREEAM, Living Building Challenge, and more, our products can contribute towards multiple credit categories, including sustainable sourcing, building product disclosure, material ingredient optimization, low-emitting building materials, acoustic performance, indoor air quality, and more. Certification systems are whole-building based. Sustainable credit categories and product contributions vary by the certification framework and design options selected.

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CREDIT Categories



BREEAM Outstanding workGensler European H.Q. | London, United Kingdom | SonaSpray “fc” | White
Delos World HQDelos World H.Q. | New York, NY | SonaKrete | Arctic White
Oakland International Airport | Oakland, CA | SonaKrete | Custom Color
LEED GOLD ProjectWinthrop Academy | Winthrop, MA | SonaKrete & SonaSpray “fc” | Arctic White
Ryerson University SLC | Toronto, Canada | SonaKrete | White
LEED GOLD ProjectLunder Arts Center – Lesley University | Cambridge, MA | SonaKrete | White & Custom Color

ICC’s spray-applied thermal and acoustic materials are readily available for shipment to our network of licensed installers. Please contact us for details on how we can help your project be the best it can be!

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