1. Appearance: No stain,no warp, intactangle and edge

2. Bulk density: 350-400 Kg/m3

3. Flexural break strength: 70-300N

4. Moisture content: about 1%

5. Sag(mm): Within 3.5mm

6. Noise reduction coefficient: 0.35-0.5

7. Acoustic coefficient: 0.4-0.6

8. Fire-resistant ratings: Class B1 qualification (GB8625-88) Class A qualification (GB5464-85)

9.  water-resistant properties: 3.5mm (JC670-1997)

10.Heat conduct coefficient:<0.065w/mk