Mineral fiber ceiling board is installed with the ceiling T-grid Mainly used for suspending board in Main hall,office, theater, dining room, classroom, shopping center, machine room, airport, fitness center, library, swimming pool and living room Features: 1) Material: mineral fibers mixed with wet process 2) Surface coating: quality vinyl emulsion paint 3) Color: white (other colors can also be chosen) 4) Surface pattern: refer to the specification sheets 5) Density: 350 - 420kg/m 6) Corner treatment: square lay-in tegular 7) Acoustic coefficient: 0.4 - 0.6 8) Fire-resistant properties: Class B1 qualification (GB8625-88) 9) Class A qualification (GB5464-85) 10) Sinking-resistant properties: <3.5mm (JC670-1997) 11) Heat conducting coefficient: <0.065w/mk 12) Bending strength: >250N 13) Recommended use: TBO-Lano baking finish light steel keel system 14) Dimensions a) Length: 300, 600, 1200mm / 12", 24", 36 b) Width: 300, 600mm / 12", 24" c) Thickness: 9 - 18mm (classified according to standard of 1mm)