Frequently Asked Questions

No, K-13 is not foam. International Cellulose Corporation does not produce any foam products. Our product line is manufactured from 80% pre-consumer recycled cellulose, natural plant fibers.

However, we do carry a product that can be used when foam has been specified. Ure-K is used as 15-Minute Thermal Barrier over exposed applications of polyurethane foam in existing buildings and new construction projects as a combination system to meet mandatory code requirements. Additionally, Ure-K provides acoustical and thermal benefits.

K-13 serves as both a thermal insulation and acoustic finish with a natural texture. Applications are sprayed between one and ten inches thick to meet thermal and acoustical requirements.

SonaSpray “fc” has more refined texture than K-13 and is purely used as an acoustical finish for sound control. SonaSpray “fc” is applied between ½” and 1”.
Both K-13 and SonaSpray “fc” are available in custom colors.

Nothing. SonaSpray and SonaSpray "fc" are often confused as two separate products; however, they are one and the same.
SonaSpray "fc" was developed when ICC recognized the need for a more refined acoustical finish in certain projects. The new product was initially named K-13 "fc" for "finished ceiling." Later, it was renamed SonaSpray "fc" to avoid confusion between K-13 and the new product.

The perfect solution for your unique project depends on the aesthetic you are trying to achieve, in addition to the thermal and sound absorption requirements.
For a project with thermal requirements, K-13 is the correct product for you as SonaSpray "fc" is purely used for acoustical benefits. If your project requires a more refined finish, however, SonaSpray "fc" may be the better choice.

Please contact us so we can work with you to find which product best fits your project.

Please contact us so that we can help you to determine the right product and thickness for your project based on your unique aesthetic, thermal, and sound absorption objectives.

No. These systems require specialized application equipment and a high degree of application skill. To maintain the high standard International Cellulose Corporation sets for their products, K-13, SonaSpray “fc”, SonaKrete, and Ure-K are only installed by factory-licensed installers who have completed the necessary training.

The cost of installation depends on many factors. The size of the job, specified thickness, color, the degree of difficulty, scheduling time, prevailing labor rates, and geographic location are all factors that go into the bid cost. Budgetary estimates are available from any of our licensed installers or by contacting us directly.

Yes. All of ICC's products come in standard and custom colors, however, the cost increases when specifying custom colors.

Yes, BUT, please consult International Cellulose Corporation for the correct practices or the benefits of our products can be compromised.

ICC products can provide decades of performance. The George R. Brown Convention Center, built in 1987, has the original application of K-13 throughout the convention center.

Yes. International Cellulose Corporation’s products are compliant with building codes. For a complete list of codes and approvals, please refer to our Technical Data page.

Yes. ICC products provide a strong, resilient bond and can withstand incidental impact.

Typically, four to five working days. Installations are usually sprayed during the vacation times when the area can be completely closed off until the work is done.

You can use your gym as soon as the work is completed. However, the spray does not reach its highest compression and bond strength until it is fully cured. Curing time can vary depending on the thickness of application and degree of ventilation. During curing time, do not allow traffic on the rooftop and take care to prevent balls from hitting the ceiling.

Yes. With the proper air exchanges present, K-13, SonaSpray “fc”, or SonaKrete can be the perfect solution to thermal and acoustical problems often present in natatoriums. Please refer to our projects page for many examples.

Yes. ICC’s products have been around for over sixty years and with that comes a long list of projects where we have been involved. Though some areas may not be open to the public, we are confident we can find an example of our work for you to see in person.