Acronym and details: GRP. A composite material made of glass fibres and plastic usually polyester, but polyamide and polypropylene are also used
Group: thermoset
Developed: during World War 2; first used in civilian life in 1950s
Trade names: Fibreglas
Manufacturing process: resin transfer moulding, compression moulding or fabrication: hand-laying in an open mould
Cost: low
Colour: any
Transparency: translucent to opaque
Rigidity: rigid
Feel: hard
Smell: none
Other:
Typical uses: very large containers, boat hulls, car panels, sculptures e.g. by Claus Oldenburg and Philip King
Degradation: relatively stable