Table 3: Average physical and mechanical performances of different composites.

Composite Density Elastic modulus (Stretching) (MPa) Synthetic thermoplastic + 30% glass fibres 1.1–1.6 82–220 Moulding high pressure 4000–6000 Thermo setting Resin (polyester) + 30% glass fibres 1.4–2 80–400 Natural based thermoplastic + 20% flax fibres 1.2–1.4 500