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100% Non Asbestos Fireproof Fiber Cement Board
Content of chloride ion | 0% |
Water content | <10% |
Water aborsption | <40% |
Percentage of water swelling | ≤0.25% |
Water vapour permeability | No water vapour after 24hours' test |
Thermal conductivity | ≤0.20 W/mk |
Thermal shrinkage | ≤0.5% |
Fire Resistance | Incombustibility A1 Class(GB8624-2006) |
Fire Resistance limit | ≥240minutes |
Bending Strength | ≥10Mpa |
Impact strength | ≥5.0KJ/m2 |
Screw-withdrawal force | ≥60N/mm |
Freezing resistance | No cracking and layering after 25 times of freeze thawing test |
Sound Insulation | >46db |
Radioactivity | <1.0lRa,<1.0lr |
Asbestos | Asbestos free |
Formaldehyde release | No formaldehyde |