What Is a GRP Profile?

How is it made?

Continuous glass fiber rovings are drawn through a resin bath, cured as they pass through a heated die, and cut to the section required. This method is called pultrusion. The result is a profile of the same quality end to end, with repeatable mechanical properties.

Key properties

• Corrosion resistance: it does not rust or rot, and it is superior in damp and chemical environments.
• Light weight: about a quarter the weight of steel, which keeps handling and installation easy.
• Insulation: it conducts neither electricity nor heat — safe on power and wet sites.
• Strength: high tensile and flexural strength; with the right section, an alternative to steel.
• Long service life: weather and UV resistant, low maintenance.

GRP or FRP?

Both belong to the same family. GRP "Glass Reinforced Plastic/Polyester", FRP is short for "Fiber Reinforced Polymer". In practice the two usually describe the same material; for the detail see What Is an FRP Profile? and GRP vs FRP pages are worth a look.

Where is it used?

Water and wastewater treatment plants, power and electrical sites, marine and coastal structures, solar plant supports and chemical plants above all — anywhere corrosion, weight and insulation matter. We will settle the right profile and resin together.