OPEN CEILING SOUND CONTROL SPRAY
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SonaSpray “fc” is an exposed ceiling acoustical insulation used for Acoustical control. SonaSpray “fc” provides an attractive, high-performance solution to acoustical and lighting design objectives in both new construction and renovation projects. SonaSpray “fc” has a refined texture and is available in four standard colors and specially-matched custom colors. If you have additional questions about this open ceiling soundproofing spray, contact us today!
ACOUSTICAL FINISH SYSTEM
SonaSpray “fc” begins with uniquely prepared cellulose fibers combined with natural fire retardants in a strict, quality-controlled manufacturing process producing a Class 1, Class A rated material.
SonaSpray “fc” is then applied from 1/2” up to 1” thick by an international network of professional contractors licensed by ICC. During application, the SonaSpray “fc” fibers combine with a water-based adhesive producing a durable exposed finish with exceptionally high bond and compression strength.
Sound Control
Offering a more refined finish, SonaSpray “fc” is the ideal solution for noisy environments where aesthetics and performance are key. A typical installation of 1/2″ thick on solid backing can reduce excessive noise by 65%.
This superior acoustical performance is measured using the room reverberation method per ASTM C 423 to calculate a noise reduction coefficient (NRC). SonaSpray “fc” significantly reduces reverberation time to improve ambient sound quality and speech intelligibility. Typical projects include gymnasiums, open-plan offices, schools, worship centers, restaurants, and hotels.
ASTM C 423 - SOUND ABSORPTION (NRC)
SonaSpray “FC” on Solid Backing
Inches 125 Hz 250 Hz 500 Hz 1,000 Hz 2,000 Hz 4,000 Hz NRC
.5” 0.00 0.14 0.49 0.87 1.00 0.99 0.65
.75” 0.10 0.23 0.70 0.98 1.01 0.96 0.75
1” 0.05 0.40 0.94 1.04 0.97 0.99 0.85
SonaSpray ”FC” on 1.5” Metal Deck
Inches 125 Hz 250 Hz 500 Hz 1,000 Hz 2,000 Hz 4,000 Hz NRC
.75” 0.17 0.58 0.91 0.89 0.87 0.84 0.80
1" 0.22 0.62 1.02 1.09 1.05 1.00 0.95
SonaSpray ”FC” on 3” Metal Deck
Inches 125 Hz 250 Hz 500 Hz 1,000 Hz 2,000 Hz 4,000 Hz NRC
.5” 0.51 0.48 0.80 0.88 1.00 1.00 0.80
.75” 0.55 0.55 0.94 1.01 1.03 1.00 0.90
1" 0.63 0.73 1.08 1.04 1.01 1.00 0.95
CUSTOM COLORS AVAILABLE
SonaSpray “fc” is available in four standard colors can also be specified in specially matched custom colors.
Please contact us for more information on customizing your SonaSpray “fc” application.
SonaSpray “fc” Standard Color Chart
Note: Color selection will affect the final price.
SUSTAINABILITY
SonaSpray “fc” is made from 80% Pre-Consumer Recycled Content and inventoried to 1,000 PPM in accordance with the HPD Collaborative.
SonaSpray “fc” is UL GREENGUARD Gold certified and compliant with LEED v4: Low-Emitting Materials, CDHP/California Section 01350, SCAQMD Rule 1168, and CHPS – Acoustical Ceiling. Additionally, SonaSpray “fc” provides high light-reflectivity, superior acoustical performance, and may contribute to sustainable credit categories for green-building initiatives.
SonaSpray “fc” does not contain silica dust, asbestos, mineral or glass fibers, or PCBs.
TECHNICAL DATA
ASTM Standards Compliance
- ASTM C 423 – Sound Absorption
- ASTM D 2244 – Light Reflectance
- ASTM E 84 – Surface Burning Characteristics
- ASTM E 736 – Cohesion/Adhesion – Bond Strength
- ASTM E 761 – Compressive Strength
- ASTM E 859 – Air Erosion
ASTM C 423 – Sound Absorption (NRC)
| Inches | 125 Hz | 250 Hz | 500 Hz | 1,000 Hz | 2,000 Hz | 4,000 Hz | NRC |
|---|---|---|---|---|---|---|---|
| .5” | 0.00 | 0.14 | 0.49 | 0.87 | 1.00 | 0.99 | 0.65 |
| .75” | 0.10 | 0.23 | 0.70 | 0.98 | 1.01 | 0.96 | 0.75 |
| 1” | 0.05 | 0.40 | 0.94 | 1.04 | 0.97 | 0.99 | 0.85 |
| Inches | 125 Hz | 250 Hz | 500 Hz | 1,000 Hz | 2,000 Hz | 4,000 Hz | NRC |
|---|---|---|---|---|---|---|---|
| .75” | 0.17 | 0.58 | 0.91 | 0.89 | 0.87 | 0.84 | 0.80 |
| 1" | 0.22 | 0.62 | 1.02 | 1.09 | 1.05 | 1.00 | 0.95 |
| Inches | 125 Hz | 250 Hz | 500 Hz | 1,000 Hz | 2,000 Hz | 4,000 Hz | NRC |
|---|---|---|---|---|---|---|---|
| .5” | 0.51 | 0.48 | 0.80 | 0.88 | 1.00 | 1.00 | 0.80 |
| .75” | 0.55 | 0.55 | 0.94 | 1.01 | 1.03 | 1.00 | 0.90 |
| 1" | 0.63 | 0.73 | 1.08 | 1.04 | 1.01 | 1.00 | 0.95 |
ASTM D 2244 - Light Reflectance
| Standard Color | Light Reflectance Value (LRV) |
|---|---|
| White | 84+ |
| Light Gray | 73+ |
| Gray | 45+ |
| Tan | 46+ |
| Black | 17+ |
ASTM E 84 - Surface Burning Characteristics
SonaSpray “fc” has a Class 1, Class A fire rating per ASTM E 84, UL 723.
- Flame Spread – 5
- Smoke Developed – 5
ASTM E 736 – Cohesion/Adhesion – Bond Strength
- SonaSpray “fc”: Bond Strength is greater than 600 psf
- SonaSpray “fc”: With Dura-K is greater than 900 psf
ASTM E 761 - Compressive Strength
- SonaSpray “fc” >400 psf
- SonaSpray “fc” with Dura-K >600 psf
Miscellaneous Codes & Approvals
-
- Federal Defense Logistics Agency Cage Code: ONJU2
- Federal Specification – SS-S-111C
- Corps of Engineers Guide Specifications – CE-201.01
- Department of the Navy Guide Specifications – NFGS-07218
- Los Angeles – RR-24311
SonaSpray “fc” meets IBC 2009 Section 803.10 Stability requirements for Interior Finish materials.
DURABILITY
The adhesive used to apply SonaSpray “fc” provides a durable and resilient bond. SonaSpray “fc” will resist impact and abrasion without cracking or spalling, often typical with cementitious or plaster-based materials.
In projects requiring additional durability, SonaSpray “fc” Dura-K may be specified to result in even greater bond and compressive strength without reducing the acoustical performance.
SUBSTRATE COMPATIBILITY
Our patented water-based adhesive adheres to virtually any properly prepared substrate and ceiling configuration including metal deck, barrel-vaults, concrete “T” corrugated decks, gypsum, wood, concrete, and other complex surfaces.
Surfaces to receive SonaSpray “fc” are to be inspected prior to installation to determine if pretreatment is required.
TYPICAL PROJECTS
SonaSpray “fc” is typically used as an exposed ceiling finish to reduce excessive noise and reverberation and provide versatile color options. It is appropriate for interior spaces such as gymnasiums, open-plan offices, schools, worship centers, restaurants, and hotels.
Please see our Projects Gallery for more examples of how SonaSpray “fc” can be customized to meet your project requirements.






