*Materials: Tombermorite crystals , natural fiber…….
*Fire-proof : A-class incombustible (GB8624-1997)
*Incombustibility: 240 minutes (GB/T9978-1999)
*Density: 1.2-1.4g/cm3
*Water content ratio:≤10%
*Swelling ratio：≤0.45%
*Shrinking ratio:≤0.45%
*Anti-being strength：≥12MPA 、
*Frost resistance : Don’t appear cracking and delamination after 25 cycles of freezing and thawing . (GB/T7019-1997)
*Radioactivity: Standard of GB6566-2001 (A-class Decoration Materials)