AMF Thermatex Thermofon Black is a low density mineral tile with a painted acoustic fleece facing. It offers outstanding sound absorption values.Our AMF Acoustic Range carries the Declare label. System Two way exposed grid system Dimensions 1200 x 600mm (other sizes available on request) Thickness / weight 15 mm (c. 2.6 kg/m²) Colour Black Edge details SK Sound absorption NRC = 0.85 as per ASTM C 423 Sound attenuation Dn,f,w = 28 dB as per EN 10848 Fire resistance Group 1-S (as per ISO 5660 Parts 1 and 2) Thermal conductivity λ = 0.038 W/mK as per EN 12667 Humidity up to 95 % RH