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Hunailk™ board is a high class fire resistance fiber cement board manufactured by Headerboard. Being characterized by lightness, high strength, ultra-strong pliability, excellent fire resistance performance, nailable performance, high grip strength, etc., the product is one of new types of building materials developed and recommended by China.
Performance index | Test result | |
Density(g/cm³) | 1.1-1.3 | |
Dry shrinkage(%) | ≦0.15 | |
Wet expansion(%) | ≦0.23 | |
Incombustibility | Incombustible Class A | |
Radioactivity | Decorating materials, Category A | |
Flatness(mm/m) | 2 | |
Flexural strength | Dryness | ≧13 |
Water saturation | ≧8 | |
Thermal conductivity | 0.216 | |
Water permeability | Tested for 24 hours; no water drop | |
Frost-resitance Asbestos | Be able to resist frost at -20°C ; no rupture and delamination after 25 freezing and thawing cycles 100% free of asbestos |
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