... absorption anti-corrosion, fungi,rot,chemical fireretardant FRP as skin panel on both sides, PP honeycomb as core. They are composited ... high pressure and heating. The features of our frp honeycomb panel are light weight, high stiffness, sound damping, fire-retardnat, ... to above. Commonly in practice composite panel thickness from 15mm to 40mm. Sandwich panel is widely applied in Marine as structural ...