Fiberglass Grating

Unicomposite can supply two kinds of fiberglass grating, FRP Molded Grating and FRP Pultruded Grating.

Molded Grating is made from polyester resin and continuous fiberglass roving, heat cured in a mold, in a hand-crafted layer-by-layer operation to produce the desired thickness and panel size. Grating produced using this technique have 30-35% (total weight) glass fiber reinforcement. The one-piece interwoven mesh construction of the molded grating produces a product with optimal corrosion resistance and bi-directional strength. Since the grating is “cast” in one piece, there is no mechanical joint between bearing bars, unlike pultruded grating where the glued joints can give way in heavy continuous traffic or after prologged service.

The high percentage of resin (65%) in molded grating provides superior corrosion resistance and optimal impact resistance. Molded fiberglass gratings with a square mesh pattern offer increased load capacity and panel utilization due to its bi-directional nature.

And for different application, the surface can be chosed from smooth, concave, gritted or solid-top.

Pultruded Grating is manufactured by pultrusion process, where continuous fiberglass rovings and mats are drawn through rails, resin baths and pre-formers, then wrapped with a synthetic veil and pulled through a heated die. Fiberglass pultruded grating is uni-directional in strength and provides increased load capacity and very good levels of corrosion resistance. Large span area always need safe solution which could provide enough loading for various scenes. That’s why we produce kinds of pultruded gratings. Higher fiber volume and better unidirectional machinery properties than molded grating can make it work well under same clear span. Meanwhile, pultruded grating has all the advantages which molded grating has.

Features of our fiberglass gratings:

• High Strength
• Light Weight
• Fire Retardant
• Corrosion Resistant
• UV Resistance and Anti-aging
• High Impact and Fatigue Strength
• Non Conductive, Low Thermal Conductivity
• Cost Effective, Easy to Install and Maintenance

Application

FRP gratings are usually used as floor grating, marina walkway, roof walkway, catwalk grating, work platforms, offshore platforms, decks, stair treads, fencing, tree guard, drain channel cover, ditch covers, etc.

And they are widely used in petroleum, water conservancy, textile printing and dyeing, food processing, electronics industry, sewage treatment, shipbuilding, civil construction, power engineering, power substations, and chemical industries.

To find the specification and more detailed properties of our FRP grating, please feel free to contact us.