- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 10 Jul 2019
Glass reinforced plastic GRP
Glass reinforced plastic (GRP), is sometimes referred to as; glass reinforced polyester, fibreglass, glass-fibre reinforced plastic (GFRP), fibre reinforced plastic (FRP) or fibre reinforced polymer (FRP).
It is a composite, laminate material that was first developed in the 1930’s and consists of glass fibres used to reinforce a plastic, typically a polyester resin. The glass fibres can be used as ‘random’ short-chopped strands formed into a mat, or they can be gathered together into ‘rovings’ (bundled rope), or woven into a fabric.
GRP can be mass produced or built-up by hand, and after curing, forms a complex matrix of plastic and glass fibre. The composite properties of high-strength glass fibre and highly-resilient plastic, make GRP strong, lightweight and weather- and corrosion-resistant. It can also be manufactured to be fire retardant. As a result, it is suitable for a very wide range of applications such as boat building, car bodies, cabinets and helmets.
In construction, these characteristics, mean that it is easy to install, requires little supporting structure, is durable and is low maintenance. As a result, it is used to manufacture components such as:
- Architectural mouldings.
- Fascia panels.
- Tanks, planters and linings.
- Storage containers.
- Doors and door surrounds.
- Window surrounds and sills.
- Cladding panels.
- Walkways and railings.
- Dome structures such as radomes.
It can also be used for temporary applications such as formwork.
 Related articles on Designing Buildings Wiki
Featured articles and news
A simple path to possible error avoidance.
Construction + technology = ConTech.
New low and high tech tools enter the marketplace.
Report looks at mental health in the built environment.
Radiant wall heating method to control rising damp.
What future infrastructure provision might look like.
Highlighting the health benefits of home improvement.
Pavilions for music, entertainment, and leisure. Book review.
Broadening our understanding of Dublin’s chequered social history.
The charm of London's Cabmen's shelters.
Future Weather Files research tool looking for feedback.
Exploring the Colour Rendering Index.
Why it's important to find out what went wrong.
ECA reviews the shape of the construction job market.
Why proper room acoustics make a difference.
Initiative puts gas networks on the path to net zero.
WICE Woman Architectural Technologist of the Year 2019.