... nd installation,Good Surface Treatment Specifications1.Surface Facing:Magnesium Oxide Board or Fibre Cement Board2.Core Material:EPS,XPS,PU, ... The panel core is Self Extinguishing Grade , and the Facing Board Fireproof , thus,Sandwich Panels have excellent Fire Resistance ability.2 ... the sandwich panel has good Noise Resistance Capacity , can insulate 30-60dB.5. The Surface can be painted and decorated ...