Pultruded gratings are made by assembling the FRP pultrusions which are manufactured with a high percentage of glass fiber roving soaked with resin and finally designed to desired shapes by heating and pultrusion.
Pultrusion is a continuous process in which the glassfibers, glass matting and a synthetic surface veil are literally “pulled” simultaneously through a polyester or vinyl ester resin bath. The desired geometric shape is formed as they are pulled through a heated steel die as the composite hardens.
Pultruded gratings are light weight, strong, chemical and UV resistant with less maintenance. Pultruded gratings are well suited for highly corrosive environments and offers very high load bearing capacity.
Fiberglass Grating pultrusions come in three categories:
I-Shape bars, T-Shape bars, and High-Load bars for Heavy-Duty Applications. The bearing bars are interconnected with cross-rods.
Panels are mechanically assembled and chemically bonded and assure a high corrosion resistance together with an excellent mechanical strength thanks to the high percentage of glass fibers (roving, continuous multidirectional mat, veil).
FRP Grate Benefits: Corrosion resistant. High strength-to-weight ratio. Long service life. Fire retardant. Slip & impact resistant. Non-conductive. Superior ergonomics. Easy to fabricate. Easy to install.