About Us


Manufactured in Houston, Texas, International Cellulose Corporation's commercial finishes have led the thermal and acoustical insulation industry in sustainability, quality, and performance for over 60 years. We maintain this leadership through continual research and improvement in manufacturing processes, product testing, and application techniques. We believe that by offering the highest performing sustainable building products, we can positively impact how the world is built.

This belief propels us to a sincere commitment to quality and service which is reflected in our ISO 9001:2015 certification as well as various product certifications and standards. K-13, SonaSpray “fc,” Celbar, and Ure-K are manufactured under the Underwriter’s Laboratories Classification and Follow-Up service program. Additionally, K-13 and Ure-K are Factory Mutual (FM) approved.

Our standards extend beyond production ensuring optimal field performance. All of our commercial products are installed by an international network of certified applicators supported through continuous technical training, documentation, and follow-up service programs to achieve consistent, predictable results. Our Field Service Team strives to meet and exceed expectations for product quality and effectiveness by regularly inspecting applications during and after installation.

International Cellulose Corporation is dedicated to delivering the finest thermal and acoustical products available to conserve energy, reduce noise, protect construction investments, and create better working environments.

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