Via Nicola Persico, 9 - 23

Gioia del Colle (BA), Italy

Via Giosuè Carducci, 23

Cortenuova (BG), Italy

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+39 340 846 7264

GRP Moulded Grating

ll grigliato in PRFV - materiale Plastico Rinforzato con Fibre di Vetro – viene utilizzato per la costruzione di passerelle, scale, piattaforme, griglie di ventilazione, recinzioni, e in molte altre applicazioni dove è richiesta una superficie resistente agli agenti atmosferici, alla corrosione e all’usura.
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Moulded GRP (Glass-fiber Reinforced Plastic), also known as FRP gratings,  are designed for applications in chemically aggressive and corrosive environments. Manufactured from isophthalic polyester resin reinforced with continuous glass fibres, these panels exhibit exceptional resistance to acids, UV radiation, and fire. Their non-magnetic and electrically non-conductive properties make them ideal for diverse industrial settings.

This type of grating, commonly referred to as fiberglass grating, offers a modern and versatile solution for both industrial and residential applications. Unlike traditional metal gratings, it requires no surface treatments such as painting or galvanizing. It is lightweight, virtually maintenance-free, and easy to install or customize. The panels can be conveniently cut and drilled on site using standard tools designed for composite materials. Thanks to their exceptional mechanical, physical, and chemical properties, GRP gratings provide an optimal balance of strength, durability, and lightness.

Key features

  • Corrosion and Chemical Resistance: High resistance to acids, alkalis, and aggressive agents (ideal for most corrosion problems)
  • Electrical properties: Non-Magnetic & Non-Conductive; Electrically insulating composite structure.
  • Weather Resistance: UV & Weather Resistance: Stable under long-term UV exposure.
  • Corrosion: No need for painting or galvanizing; long service life.
  • Lightweight: +/- 4 times lighter than steel
  • Easy to Fabricate: Panels can be cut and drilled on-site with standard tools.

Technical Specifications

  • Resin Type: Isophthalic Polyester
  • Mesh size: 38 mm x 38 mm
  • Height: 30 mm
  • Thickness: 7 mm (top) / 5 mm (bottom)
  • Anti-slip finish: Concave side sanded (top)
  • Panel Sizes: 1035 x 4040 mm
  • Density: 1.60 gr/cm3
  • Tensile strength: 183.56 N/mm2
  • Fire Rating: EN 13501-1 (E CLASS)

Fixing clips

Applications

  • Industrial walkways, platforms, and stair treads
  • Power generation and petrochemical plants
  • Shipbuilding and marine facilities
  • Agriculture and food processing plants
  • Water and wastewater treatment plants
  • Ventilation covers and drainage channels
  • Fencing systems 

Production Process

The gratings are produced using an open heated mould and a wet lay-up technique. Layers of continuous glass fibres are impregnated with resin, additives, and pigments, forming a bi-directional reinforcement matrix. After curing and cooling, the panels are demoulded and surface-finished. This process yields gratings with high transverse and longitudinal mechanical strength, excellent chemical resistance, and dielectric properties.

Colours

  • RAL 6010 GREEN in stock, prompt delivery
  • YELLOW and GREY upon request
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About us

EMMEGI Spa is a leading Italian company specialising in the production and marketing of open mesh press-welded grating, metal fences, CE-marked gates, metal stair treads and safety ladders, active in the domestic and international market

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