Raw Materials: Paper Pulp, Portland Cement, Quartz Sand and Inanimate matter

Thickness: 8mm,9mm, 12mm
Standard Size: 202*3050mm
Density minimum 1.30-1.50 kg/m3

Fire Resistance: In accordance with BS476 Part20&22:1987; GB8624 Class A (CNS6532)

Thermal conductivity: <0.20w/mk

Coefficient of Thermal Expansion: <5x10-6m/m.k

Coefficient of Moisture Expansion: <0.20%

Coefficient of Dry Shrinkage: <6x10-2

Bending Stress:≧15.0N/mm2

Impact Strength: >4.0KJ/m2

Screw Pullout Force: ≧80N/mm

Moisture Content: <10%

Water Absorption: <20%
Anti-freezing: No distortion after 25 repeated cycles of freezing and thawing

Radioactivity: conforming to GB6566-2001 Grade A Standard

Edges: Square

100% asbestos free

Color: Grey or spray-painted color