... stiffness strength energy absorption anti-corrosion, fungi,rot,chemical FRP as skin panel on both sides, PP honeycomb as core. They are ... composited from high pressure and heating. The features of our FRP panel are light weight, high stiffness, sound damping, fire-retardnat, ... ,common in application from 6mm to 40mm. So FRP PP honeycomb composite panel thickness from 7mm to above. Commonly in practice ...