Type | Polyester | Vinyl Ester | Epoxy | Urethane |
---|---|---|---|---|
Specific gravity | 1.12 | 1.07 | 1.20 | 1.09 |
Tensile strength (MPa) | 44 | 82 | 90 | 49 |
Elastic modulus (GPa) | 3.6 | 3.5 | 3.0 | 2.5 |
Elongation at break (%) | 2 | 6 | 8 | 6 |
Coefficient of thermal expansion (10-6) | 75 | 53 | 45 | 60 |