Frequently Asked Questions

Is K-13 foam? Does ICC produce any foam products?

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, which is made of natural plant fibers.

However, we do carry a product that can be used when foam has been specified. Ure-K is used as a 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.

What is the difference between K-13 and SonaSpray “fc”?

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 a 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.

What is the difference between SonaSpray and SonaSpray “fc”?

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.

Which is better for our application, K-13 or SonaSpray “fc”?

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.

How can I determine the correct thickness and product to specify for my unique space?

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.

Can your products be applied by any Insulation/Acoustical Contractor?

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

How much would it cost to spray our project?

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.

Does color choice affect the price?

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

Can the installed material be painted?

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

How long will an installation of your product last?

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.

Do ICC products comply with building codes?

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.

Can K-13 or SonaSpray “fc” be used in a gymnasium where basketballs and volleyballs may strike the surface?

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

How long does it take to treat a gymnasium with your system?

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.

How long must we wait before we can use our gym?

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 the application and the degree of ventilation. During curing time, do not allow traffic on the rooftop and prevent balls from hitting the ceiling.

Can ICC’s products be used in high-humidity areas like an indoor pool?

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.

Are there any installations in our geographic area that we may visit and/or call for a reference?

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.