The raw material of outer wall rock wool sandwich panel is natural volcanic rock, which is non-flammable building material and fireproof material.

Main fire protection characteristics of rock wool sandwich panel:

· it has the highest fire protection level A1, which can effectively prevent the fire spreading.

· the size is very stable and will not stretch, shrink or deform in the fire.

· high temperature resistance, melting point higher than 1000 ℃.

· no smoke or combustion droplets / debris will be generated in the fire.

· substances and gases harmful to the environment will not be released in the fire.