Glass fiber reinforced plastics (GRP)
Description (definition)
Glass fiber reinforced plastics (GRP) are composite materials consisting of a plastic matrix material such as polyester resin or epoxy resin reinforced with glass fibers. The glass fibers give the material high strength, rigidity and temperature resistance, while the plastic matrix provides flexibility and formability. GRP is often used in the automotive, construction, aerospace and wind energy industries.
Example
A typical example is the use of GRP in wind turbine blades. By combining lightness and stability, GRP enables efficient energy generation and a long service life for the turbine blades.
What are the advantages of glass fiber reinforced plastics?
GRP combines lightness with high mechanical stability, making it ideal for applications where weight and strength are critical. It is corrosion-resistant, easily moldable and offers a long service life, even under extreme environmental conditions.
How are glass fiber reinforced plastics manufactured?
GRP is produced by inserting glass fiber mats or fabrics into a mold, which is then saturated with liquid plastic resin. After curing, a solid, lightweight material is produced. Frequently used processes are hand lamination, injection lamination and pultrusion.
Where are glass fiber reinforced plastics used?
GRP is used in the automotive industry (body parts, interior trim), in construction (bridges, facades), in aerospace (structural components) and in the energy sector (wind turbine blades, cable trays). Its corrosion resistance also makes it ideal for applications in maritime environments.