Beijing Hocreboard Building Materials Co.,Ltd

Beijing, China, China

We are offering fiber cement board. fiber cement board raw materials:cement, quartz sand, fiber and other non hazardous ingredients basic color:graydensity:1.20g/cmmoisture content:10%water absorbing capacity:55%thermal conductivity:average0.20w/mkbending strength:transverse11.0n/mm3 vertical8.5n/mm3radioactivity:conforming to gb6566-2001 a classfire resistance:incombustibility a class(gb8624-a) fire resistant::it is flame resistant to combustion at 800 and remains flameless at 1200 . non-flammability: grade a weather resistant:resistant to deformation in wet, hot and dry conditions. can be used at -40 degree.out of shape rate in the condition of wet or dry is 0.26%. water and damp proof:the board still keeps intact after being soaked in water for one month , the phenomenon of swelling and out of shape will not happen. it will not disintegrate when immersed in water or exposed to freeze/thaw cycles for prolonged periods of time. bug & mildew free:after tests under astm g-21, this board has been found to be non-nutrient to mold , fungus growth or insect life. insulation:after inspection by the national center for quality supervision and testing of fire building materials (nftc) it has been found that the superior sound insulation factor of a wall built from the board ranges between 44db and 47 db. in addition to being a great sound insulator , this board benefits from having a low thermal conductivity of 0.216 w/mk which makes it a superior heat insulator. environmentally friendly:this environmentally friendly board is manufactured from a unique blend of mineral components, and does not contain any toxic ingredients , asbestoes, formaldehyde or ammonia.