... core material can be classified into two kinds: cell open and with polyester tissue.Light weight, high compressive strength, anti-water, anti ... boat, yacht, port, bridge, truck body, building, FRP and so on. PP honeycomb core Specification: Dimension, Cell size ... 2500mmWidth Max: 1300mmThickness 6mm----150mmNormal size: 2440*1220mm core material for sandwich structure lightweight and water proof