Ure-K is a spray-applied 15-minute Thermal Barrier approved to go over exposed applications of polyurethane foam to meet mandatory code requirements while enhancing insulation and acoustics. Spray-applied to a minimum thickness of 1.25", Ure-K integrates effortlessly into new construction and existing buildings. Made from sustainable cellulose fibers, this versatile system provides both thermal protection and sound absorption. With a natural texture available in four standard colors and in custom color options, Ure-K offers design flexibility without compromising performance.
Performance dashboard
Features & functionality
- 15-minute thermal barrier provides critical fire protection.
- Dual-performance system delivers both thermal protection and sound absorption, improving safety and acoustic comfort simultaneously.
- Integrates seamlessly with exposed ceiling designs, preserving spatial openness while meeting performance and safety requirements.
- Available in standard and custom color options to support design intent while maintaining code-required performance.
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Environment & materials
Improved by:
- Made from sustainable cellulose fibers, supporting environmentally responsible specification and material transparency.
- Low-emitting material that contributes to healthier indoor air quality.
- Spray-applied application minimizes material waste, improving installation efficiency and reducing job-site environmental impact.
- Supports integrated performance strategies, combining fire protection, acoustical enhancement, and insulation performance in a single system.
Certifications rating sytems & disclosures:
- GREENGUARD Gold (1)
- Health Product Declaration (HPD)
- Environmental product declaration (EPD)
- M1 classification of low emitting building materials
- UL classified
- Cradle to Cradle Certified® Bronze
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Ure-K Specificiation
Ure-K Technical Data Sheet
Sound Absorption Chart
How we make it greener
ICC's line of spray-applied systems, consisting of natural, plant-based fibers and specialty, water-based adhesives, are carbon-storing materials that contain over 50% recycled content. Cellulose, the primary raw ingredient, has an exceptional embodied carbon profile and contains wood, cotton, hemp and other rapidly renewable resources. During their useful life, these raw material ingredients sequester carbon reducing the amount of harmful greenhouse gasses in the atmosphere. Cellulose takes less energy to make compared to other building insulation materials.
K-13, SonaSpray, Ure-K, and SonaKrete spray-on systems are M1 Classified as Low Emitting Building Material and are compliant with CDPH/CA Section 01350. They are also GREENGUARD Gold Certified per UL Environmental which ensures that a product has met the most rigorous and comprehensive standards for low emissions of volatile organic compounds (VOCs) into indoor air.
ICC products have met the Living Building Challenge requirement that they do not contain chemicals on the Red List. The Red List contains some of the worst materials prevalent in the building industry; for transparency purposes, ICC has provided an ingredient list for 98% of the total product and all proprietary material chemicals have been disclosed to third party to verify they are non-hazardous. K-13, SonaSpray, Ure-K, and SonaKrete spray-on systems are free of heavy metals such as Lead (Pb), Cadmium (Cd), Mercury (Hg), and Hexavalent Chromium (Cr(VI)) or other metals. Furthermore, there are no ozone depleting substances such as CFC’s/HCFCs, Isocyanate or any Brominated Flame Retardants (PBTs).
K-13, SonaSpray, Ure-K, and SonaKrete are manufactured in the United States under the ISO 9001:2015 Quality Management System by International Cellulose Corporation in Houston Texas. Adhesives are produced and shipped in concentrated forms and are diluted with water sourced from the job site. Local sourcing and manufacturing allow for a reduction in transportation costs and emissions.
International Cellulose Corporation’s thermal and acoustical finish systems are spray-applied to common substrates through specialized equipment using approved application techniques. ICC's products are installed by a network of licensed applicators, trained by ICC and supported by their field services team. During the installation, fibers and adhesives are combined forming a durable, monolithic coating over the substrate.
Little to no waste is generated in the installation process.
How we’re making it greener and healthier
Ure-K supports sustainable construction by combining safety performance, acoustical enhancement, and environmentally responsible material composition. Manufactured from recycled cellulose fibers, Ure-K reduces reliance on virgin and nonrenewable materials while supporting resource conservation and waste reduction. Its low-emitting properties and GREENGUARD Gold Certification help promote healthier indoor air quality, supporting occupant well-being in commercial and industrial environments.
By providing both a thermal barrier and sound absorption in a single application, Ure-K reduces the need for additional materials and assemblies. This integrated performance helps conserve resources, reduce material consumption, and lower the overall environmental footprint of construction projects. Its spray-applied installation minimizes job-site waste, improves material efficiency, and supports responsible, sustainable building practices.
SM Performance Fact Sheet ™
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International Cellulose Corporation
12315 Robin Blvd.
Houston, TX 77045
www.spray-on.com
(800) 444-1252