Fire protection performance:
Perforated sound absorption board made of natural magnesite powder by heating
Milky white (colour can be self-painted)
There are plenty of interconnected micro holes inside (about 45% of the total volume). As the board has ceramic strength, cutting can be done using simple tools. It is also fireproof, waterproof, anti-corrosion and can be easily installed. As natural magnesite powder is taken as the raw material, no formaldehyde or other gases harmful to humans will be emitted. This kind of material can be at last used as fertiliser, as proved by tests, and is recommended by the Ministry of Construction as a type of environmentally friendly material.
Public environments with severe noise, e.g. indoor and outdoor venues, swimming halls, road tunnels, high-speed rail and light rail platforms, airports, docks, acoustic barriers and equipment rooms to absorb sound and reduce noise