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Onekin lightweight and fireproof magnesium oxide   board with high strength 

Onekin lightweight and fireproof magnesium oxide  board with high strength 

  • Density:1.0-1.2kg/m3
  • Fireproof:grade A
  • flexual strength:≥8MPa
  • anti-impact;≥2kJ/m2
  • halogenation resistance:no water and no moisture created
  • water content:less than 8%
  • dry shrinkage rate:rate ≤0.3%
  • expansion in water rate:≤ 0.6%
  • content of chloride:≤ 10%
  • Certificate:ASTM,SGS,ISO9001,2000Qc systems

Onekin lightweight and fireproof magnesium oxide

 boardwith high strength

Test data about MgO fire rated door core:


   Bending strength: ≥8 Mpa 

   Compressive strength: 0.35-0.8 Mpa 

   Thermal conductivity: ≤0.035-0.076 w/(m*k)

    Water content: ≤10% 

    Fire rated: 0.6-2h


different density for different door:


    For lightweight wooden door PF: 220-280 Kg/m3 

    For ordinary steel wooden door KF: 280-340 kg/m3 

    For special steel door ZF: 380-500 kg/m

Glue material: fireproof glue, high temperature resistance 1100


Glue quantity: 300-350 g/m2, add solidify additives 3%-8% of the glue. Need to bonding in 5 minutes after brush the glue, then hot-press at 75-95centi degree, it will solidify after 30 minutes, it will take 4-6 hours to solidify, if use cold-press.



   Bonding must be proceed in 5 minutes after brush the glue, too long lead


time will result in little solidify on rubber surface; hot-press or cold-press must be proceed in one hour after bonding.If the temperature is low, need to length the cold press time to 12 hours.


but if the humidity reach 85% or the temperature below 10 centi degree,better use hot-press way.

Onekin Green Building Materials Co., Ltd.


Contact Person:Arya

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