Purpose: Fireproof, humidity-absorbed, for perforated tiles withe black felt, sound absorption and heat separation.
Acoustic ability:
1)perforation with SoundTex Paper
2)absorb modulus: NRC: 0.7
3)Acoustic level:
A)plain: CAC=40dB, b)perforation: CAC=24dB
Fire proof ability:
British standards institution fire test pass(BS476)
Processing: Scissors & tooth saw available.
Cleaning: Cleaning with water or cleanser.