SonaSpray “fc” is a spray-applied acoustical finish that can achieve a noise reduction of 75% with only 3/4" thick application. SonaSpray "fc" provides an attractive, high performance solution to acoustical and lighting design objectives in both new construction and renovation projects. Typical installations include: schools, churches, studios, libraries, cafeterias, and offices. SonaSpray "fc" is available in standard and custom colors.