Exterior decorative fiber cement cladding

Detect items

Index

Folding strength under the natural dampish state (Mpa)

*1±2

Fold strength after be dipped in water for *4 hours Mpa

>8.5

Drying shrinkage

<0.*6%

Tensile strength on the vertical plane Mpa

>0.5

Resistance to impact(**0g hammer weight,*2mm thick panel)

Dropping from ***0mm meter, and has no penetrating cracks

Anti-folding elastic modulus(Mpa)

>***0

Density(T/M3)

1.**1.4

Thickness expansion coefficient(%)after being dipped in water for *4 hours

<1.5

Fire resistance

B1 level

Moisture content(%)

*0±5

Clutching nail force

>**0

Heat conductivity coefficient(w/m.k)

0.*9(density ***0kg/m3

Surface water resistance

No change within *6 hours

Surface alkali fastness

No change within *8 hours

Surface washing fastness

>***0 times

Surface aging resistance

No change within ***0 hours

Contamination resistant

<*5%

Sound insulation value

*6dB(single panel)

Bend degree after water absorption

Bend less than 3mm after water absorption

Water absorption

*5%

Bond strength in cyclic test under the damp condition N/mm2

>0.3

Thickness expansion rate after the cyclic test under the damp condition %

1.5%

Ultraviolet irradiation

>Has no change, no crusting,no peeling within**0hours

**0°C

The size and surface do not change after being frozen

Distortion performance under the wind pressure

Third level (GB/T*******4)