Fibreglass was first developed in the 1930's and is now referred to as GRP (Glassfibre Reinforced Plastic) or FRP (Fibre Reinforced Plastic). GRP is a composite of a range of materials which can include chopped strand matt; woven rovings; carbon fibre; other exotic fibres; and different kinds of resin.

Probably the most familiar application of GRP is associated with the boatbuilding industry where hulls, superstructures and internal components are moulded from this very versatile material. It has the advantage over steel and wood of being moulded into complex shapes and, when the materials are processed to their manufacturers specifications, provides strength and reliability for many years, whilst requiring virtually no maintenance.