Fiberglass material density of not less than 48 Kilograms
per cubic meter, with a thickness of 50 mm.
Incombustible, non-flammable, absorb moisture less
than1.5% by weight, not moldy or a nursery bacteria (ASTM C665).
Test standard ASTM C423-99a.
External surface with black spunbond cloth and
galvanized steel 0.7 mm. thick coating with powder coat,.
Perforated hole size 2.5 mm. Pit size 5.0 mm. was placed
in a 90 degree.
Features
The walls are perforated panel to be used for sound absorption. Installed in the room to reduce wall resonance. Have sound absorption
properties in the wide frequency range.
Easy installation and strength. Durable to be inserted, acids, alkalis, moisture, have a long lifetime and can be cleaned without affecting
the properties of the wall.
