Property | Polymer | Metal | Ceramic |
Arc Resistance, sec | 10% | | |
CTE, linear 20ºC, µm/m-°C | 30% | 64% | 43% |
CTE, linear 250ºC, µm/m-°C | 1% | 58% | 17% |
CTE, linear 500ºC, µm/m-°C | | 51% | 10% |
CTE, linear 1000ºC, µm/m-°C | | 23% | 11% |
Coefficient of Friction | 4% | | |
Comparative Tracking Index, V | 13% | | |
Compressive Yield Strength, MPa | 15% | 4% | 24% |
Deflection Temperature at 1.8 MPa, ºC | 59% | | |
Deflection Temperature at 0.46 MPa, ºC | 44% | | |
Density, g/cc | 93% | 90% | 76% |
Dielectric Constant | 25% | | 25% |
Dielectric Constant, Low Frequency (Polymers) | 14% | | |
Dielectric Strength, kV/mm | 24% | | 15% |
Dissipation Factor | 23% | | 14% |
Dissipation Factor, Low Frequency (Polymers) | 14% | | |
Electrical Resistivity, Ohm-cm | 40% | 80% | 28% |
Elongation %; break | 81% | 85% | 7% |
Emissivity (0-1) | | 1% | 1% |
Fatigue Strength, MPa | 1% | 6% | 0% |
Flammability, UL94 (5=V-0; 4=V-1; 3=V-2; 1=HB) | 47% | | |
Flexural Modulus, GPa | 64% | 1% | 1% |
Flexural Yield Strength, MPa | 51% | 0% | 0% |
Fracture Toughness, MPa-m½ | 0% | 2% | 8% |
Glass Temperature, ºC | 5% | | |
Gloss, % | 4% | | |
Hardness, Barcol | 1% | | |
Hardness, Brinell | | 48% | |
Hardness, Knoop | | 50% | |
Hardness, Rockwell A | | 7% | |
Hardness, Rockwell B | | 39% | |
Hardness, Rockwell C | | 37% | |
Hardness, Rockwell E | 1% | | |
Hardness, Rockwell M | 6% | | |
Hardness, Rockwell R | 24% | | |
Hardness, Shore A | 7% | | |
Hardness, Shore D | 10% | | |
Hardness, Vickers | | 49% | 0% |
Haze, % | 5% | | |
Heat Capacity, J/g-°C | 3% | 70% | 15% |
Heat of Fusion, J/g | | 7% | 2% |
Impact Strength, Charpy, in J or J/cm² | 11% | 16% | 0% |
Impact, Unnotched Charpy, J/cm² (Polymers) | 9% | | |
Impact, Low T Notched Charpy, J/cm² (Polymers) | 6% | | |
Impact, Low T Unnotched Charpy, J/cm² (Polymers) | 7% | | |
Impact Strength, Izod, in J, J/cm, or J/cm² | 61% | 11% | 1% |
Impact Strength, Unnotched Izod, J/cm (Polymers) | 23% | | |
Impact, Low T Notched Izod, J/cm (Polymers) | 6% | | |
Linear Mold Shrinkage, cm/cm | 56% | | |
Liquidus, °C | | 41% | 1% |
Maximum Service Temperature, Air, °C | 42% | 10% | 28% |
Melt Flow, g/10 min | 37% | | |
Melting Point, °C | 20% | 44% | 28% |
Modulus of Elasticity, GPa | 54% | 76% | 31% |
Moisture Vapor Transmission, g-mm/m²-24hr-atm | 2% | | |
Oxygen Index, % | 7% | | |
Oxygen Transmission, cc-mm/m²-24hr-atm | 2% | | |
Poissons Ratio | 2% | 16% | 12% |
Processing Temperature, ºC | 30% | | |
Reflection Coefficient, Visible (0-1) | 0% | 2% | 8% |
Refractive Index | 2% | | 15% |
Shear Modulus, GPa | 0% | 47% | 7% |
Solidus, °C | | 39% | 4% |
Surface Resistance, Ohm | 18% | | |
Tensile Strength, Ultimate, MPa | 70% | 90% | 21% |
Tensile Strength, Yield, MPa | 33% | 82% | |
Thermal Conductivity, W/m-K | 12% | 80% | 40% |
Transmission, Visible, % | 4% | | 9% |
UL RTI, Electrical, ºC | 7% | | |
UL RTI, Mechanical with Impact, ºC | 7% | | |
UL RTI, Mechanical without Impact, ºC | 6% | | |
Vicat Softening Point, ºC | 20% | | |
Water Absorption, % | 48% | | 9% |
Moisture Absorption at Equilibrium, % (Polymers) | 5% | | |