SonaSpray “fc” is a high-performance, spray-applied acoustical finish system. Unlike hard surfaces and materials, which reflect sound, SonaSpray "fc" absorbs excessive noise, making speech and music more intelligible while enhancing over all sound quality. SonaSpray "fc" is Class I Class A rated and serves as an exposed interior finish. It adheres to common substrates and to complex surfaces, including: domes, ribbed metal decking, and 'waffle' ceilings, making it ideal for both new construction and renovation projects. SonaSpray "fc" is available in standard colors, including White & Arctic White, which provides high light reflectance value, and in custom integral colors.

SonaSpray “fc” is GREENGUARD Gold Certified and contributes towards indoor environmental quality. SonaSpray "fc" is UL Classified and approved and listed in several UL BXUV Guide Design Assemblies as allowable sprayed fiber for application over spray-applied fire-resistive materials.