Class A inorganic permeable polystyrene board uses ordinary polystyrene board as the blank. The inorganic fireproof silicon slurry penetrates into the blank through negative pressure penetration technology, so that the polystyrene particles are surrounded by the inorganic fireproof slurry. The inorganic permeable Class A insulation board formed by normal temperature curing or heating curing is a kind of insulation board with Class A fire resistance.
The outer surface of the polystyrene particles in the Class A inorganic permeable polystyrene board body is wrapped with nanoscale silicon slurry, and the gaps between the polystyrene particles are filled with nanoscale silicon slurry.
Main parameters: Apparent density, kg/m? 130±15
Tensile strength perpendicular to the direction of the board surface, MPa ≥0.10
Compressive strength (MPa) ≥0.12
Thermal conductivity ≤0.045
Dimensional stability, % ≤0.40
Bending load at break, N ≥25
Water vapor permeability coefficient, ng/(Pa·m·s) ≤8.0
Water absorption (v/v), % ≤1.0
Combustion performance level A