... rigidity,good flexibility. 3.excellent permeability. fiberglass needled mat fiberglass needled mat is a new fiberglass reinforced product.The needled ... surface,excellence ligh transmission.4.Moderate hardness. Fiberlass needled mat suitable for all kinds of FRP ,GRP process, ... widly used to chemical corrosion resistance pipe,storage tank,cooling tower,FRP water tank,FRP sheet,FRP pultrusion products ...