Features:
Environmental: E1 grade (people can touch the products directly)
Fireproof: A grade (the highest level)
Soundproofing: average 37 dB/decibel (high frequency soundproofing effect can be above 48 dB)
Advantage:
High rate of sound-absorption and insulation
Environmental-friendly and fireproof
Anti-burst, waterproof, heat resistance and VU-resistance
Can be cut arbitrarily
Easy to construction
Theory:
There are amounts of micro connected pores in the materials, and through the pores acoustic waves go deep into the materials and convert the acoustic energy to heat energy