Tested and compliant for noise reduction, sound absorption and sound attenuation.
Acoustic Black Fleece only: Maximum NRC = 0.80 as per ASTM C423.
DNCW = 46 as per BS EN 20140-9.
Acoustic Black Fleece with Rockwool as per ASTM C612 has a maximum NRC = 0.98.
Maximum CAC achieved: 46 db.
Non-Combustible as per BS 476: Part 6.
Class 1 Surface Spread of Flame as per BS 476 Part 7.
Black Fleece is Non-Flammable Class A as per ASTM E84.
Humidity Resistance = 95% as per ASTM D2477
Corrosion Resistance as per ASTM B 117-73, salt spray tested for 1000 hours.