Technical Data

Technical Data

Acoustic solutions

Product Description

Sonacoustics consists of a Sonaboard (a specially designed fiberglass board) on which (1) or (2) layers of acoustically transparent plasters are spray-applied and hand troweled. First a Sonaplaster Base and then the Sonaplaster Finish.

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Sonacoustic PL Smooth

SONACOUSTICTest Report125 Hz250 Hz500 Hz1000 Hz2000 Hz4000 HzNRCαw
Sonacoustic® CL, 25 mmPDF0.150.500.850.950.850.950.800.80
Sonacoustic® PL, 25 mmPDF0.150.450.800.950.950.850.800.75
Sonacoustic® PL, 35 mmPDF0.250.650.900.950.900.900.850.90
Sonacoustic® PL, 45 mmPDF0.400.800.950.950.900.900.900.95
Sonacoustic® PL, 65 mmPDF0.700.950.900.900.850.850.900.90
Sonacoustic® ML, 25 mmPDF0.150.600.700.750.650.600.700.70
Sonacoustic® FP, 30 mm (1")PDF0.200.600.901.000.800.650.850.80
Sonacoustic® CL, 43 mm (1.5")PDF0.550.850.900.850.750.750.850.85
Sonacoustic® PL, 30 mm (1")PDF0.200.600.900.950.850.800.850.85
Sonacoustic® PL, 43 mm (1.5")PDF0.500.800.950.900.800.750.850.85
Sonacoustic® PL, 56 mm (2")PDF0.750.900.950.800.750.800.900.80
Sonacoustic® PL, 68 mm (2.5")PDF0.751.000.900.850.800.800.900.85
Sonacoustic® ML, 30 mm (1")PDF0.200.600.901.000.950.850.850.90
Sonacoustic® ML, 43 mm (1.5")PDF0.450.800.950.950.900.800.900.95
Sonacoustic® ML, 56 mm (2")PDF0.800.901.000.900.850.900.950.90
Sonacoustic® ML, 68 mm (2.5")PDF0.701.000.950.850.850.850.950.80
Sonacoustic® A11 25 mmPDF0.140.450.890.950.880.800.80
Sonacoustic® A14 2.5"PDF0.751.110.890.810.820.790.90

Acoustical Test Data:

We carried our testing at 2 recognized laboratories in the world; in Europe the Fraunhofer Institut in Stuttgart and in the U.S.A. the famous Riverbank Acoustical Laboratories in Illinois.

Fire Test Data:

Sonacoustic was tested on fire resistance, in Europe as well as in the U.S.A. Both certified laboratories rated Sonacoustic as incombustible.

  • Firelabs, Berlin-Germany. Classification A2-s1,d0 according to EN 13501-1
  • Intertek –Elmendorf – Texas. Sonacoustic was tested according to ASTM E84-11a Test for Surface burning – Characteristics of Building Materials (UL 723, UBC 8 – 1, NFPA 255) Test result:
    Flame spread index 0
    Smoke developed index 0

Fungi Resistance;

Sonacoustic was tested on “ Fungi resistance “ according to ASTM C 1338 by R & D in Cookeville – Tennessee – U.S.A., result: no fungal growth appeared.

Thermal properties;

Thermal conductivity and water vapor transmission were tested by MPVA laboratories in Neuwied – Germany.


No carcinogens and reproductive/developmental toxins could be detected. Classified M 1 by Eurofins laboratories in Denmark – test reports G09415A & G09415C.

Light reflectance;

Tested by Chemir laboratories according to ASTM E1331.
Result: a very high average light reflectance value of 94,69 for the standard white color.

All test reports are available upon request.