TPC (COPE/TPEE) GF15 vs TPC (COPE/TPEE) GF30
Polymer · TPC (COPE/TPEE) grade comparison
TPC (COPE/TPEE) GF15 and TPC (COPE/TPEE) GF30 are two grades of the same polymer grade, TPC (COPE/TPEE): GF15 (15 % glass-fiber reinforced TPC) versus GF30 (30 % glass-fiber reinforced TPC). The chemistry is identical, so every difference below comes from the condition. TPC (COPE/TPEE) GF30 is the stronger of the two: tensile strength 68 MPa (9.86 ksi) against 48 MPa (6.96 ksi) for TPC (COPE/TPEE) GF15, about 42% more. In exchange, TPC (COPE/TPEE) GF15 is the more ductile: elongation 20% versus 8% for TPC (COPE/TPEE) GF30, and TPC (COPE/TPEE) GF30 is harder (78 Shore D vs 72 Shore D). TPC (COPE/TPEE) GF15 is lighter (1.33 g/cm³ vs 1.45 g/cm³ for TPC (COPE/TPEE) GF30) and TPC (COPE/TPEE) GF30 is stiffer (3.2 GPa vs 1.6 GPa).
TPC (COPE/TPEE) GF15Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
TPC (COPE/TPEE) GF30Choose it when strength drives the design.
TPC (COPE/TPEE) GF15 vs TPC (COPE/TPEE) GF30: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
TPC (COPE/TPEE) GF15TPC (COPE/TPEE) GF30
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Flexural Modulus
Izod Impact, Notched
Hardness, Shore D
Compression Set (22 h, 70 °C)
Same in both: Shear Modulus 0.07 GPa0.01 Msi · Poisson's Ratio 0.45 · Yield Strength (0.2% offset) 18 MPa2.6 ksi · Hardness, Shore A 96 Shore A · Tear Strength 145 kN/m828 lbf/in
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 208°C406 °F · Glass Transition (Tg) -50°C-58 °F · Water Absorption (24 h) 0.6% · Water Absorption (Saturation) 2.5%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Same in both: Specific Heat Capacity 1,900 J/kg·K0.45 BTU/lb·°F · Min Service Temperature -50°C-58 °F · Vicat Softening Point (B50) 180°C356 °F · Limiting Oxygen Index 21% · Max Service Temperature (short-term) 150°C302 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in · Dielectric Strength 25 kV/mm635 V/mil · Dielectric Constant (1 MHz) 4 · Dissipation Factor (1 MHz) 0.02 · Volume Resistivity 1×10¹³ Ω·cm · Surface Resistivity 1×10¹⁴ Ω · Comparative Tracking Index (CTI) 600 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 80 / 100 · UV / Weathering Resistance 40 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Mold Shrinkage
Same in both: Weldability 72 / 100 · Formability (cold) 85 / 100 · Polishability 40 / 100 · Melt Flow Rate 8 g/10 min · Processing Melt Temperature (typ.) 230°C446 °F · Mold Temperature (typ.) 40°C104 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 115 MJ/kg49,441 BTU/lb · Embodied Carbon (primary production) 5.2 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 2%
Strength versus weight
Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
TPC (COPE/TPEE) GF15 vs TPC (COPE/TPEE) GF30 — frequently asked
Is TPC (COPE/TPEE) GF30 stronger than TPC (COPE/TPEE) GF15?
Yes. TPC (COPE/TPEE) GF30 has a typical tensile strength of 68 MPa (9.86 ksi) against 48 MPa (6.96 ksi) for TPC (COPE/TPEE) GF15 — about 42% more.
Which grade does FabDigit quote by default, GF15 or GF30?
55D is the default TPC (COPE/TPEE) condition in the FabDigit quote flow (neither GF15 nor GF30). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, TPC (COPE/TPEE) GF15 or TPC (COPE/TPEE) GF30?
TPC (COPE/TPEE) GF15, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for TPC (COPE/TPEE) GF30.
Ready to make it?
Upload a CAD file and FabDigit prices the part in TPC (COPE/TPEE) GF15 and TPC (COPE/TPEE) GF30 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.