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TPC (COPE/TPEE) vs TPV

Polymer · grade comparison

TPC (COPE/TPEE) and TPV are both polymer grades. TPC (COPE/TPEE) is the stronger of the two: tensile strength 40 MPa (5.8 ksi) against 8 MPa (1.22 ksi) for TPV, about 4.8 times as much. TPC (COPE/TPEE) is the more ductile: elongation 500% versus 450% for TPV, and TPC (COPE/TPEE) is harder (55 Shore D vs 24 Shore D). TPV is lighter (0.97 g/cm³ vs 1.2 g/cm³ for TPC (COPE/TPEE)) and TPC (COPE/TPEE) is stiffer (0.2 GPa vs 0.02 GPa).

TPC (COPE/TPEE)Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

TPVChoose it when weight is the constraint.

TPC (COPE/TPEE) vs TPV: properties

TPC (COPE/TPEE)TPV

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.2 GPa0.03 Msi
0.02 GPa0 Msi

Shear Modulus

0.07 GPa0.01 Msi
0.01 GPa7.25×10⁻⁴ Msi

Poisson's Ratio

0.45
0.48

Tensile Strength (Ultimate)

40 MPa5.8 ksi
8 MPa1.2 ksi

Yield Strength (0.2% offset)

18 MPa2.6 ksi
—

Elongation at Break

500%
450%

Flexural Modulus

0.21 GPa0.03 Msi
0.03 GPa0 Msi

Izod Impact, Notched

900 J/m16.9 ft·lbf/in
—

Hardness, Shore A

96 Shore A
73 Shore A

Hardness, Shore D

55 Shore D
24 Shore D

Tear Strength

145 kN/m828 lbf/in
31 kN/m177 lbf/in

Compression Set (22 h, 70 °C)

42%
26%

Bulk Modulus

—
2 GPa0.29 Msi

Physical

Density and transition temperatures.

Density

1.2 g/cm³0.04 lb/in³
0.97 g/cm³0.04 lb/in³

Melting Temperature (Tm)

208°C406 °F
165°C329 °F

Glass Transition (Tg)

-50°C-58 °F
-55°C-67 °F

Water Absorption (24 h)

0.6%
0.5%

Water Absorption (Saturation)

2.5%
1.5%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.23 W/m·K0.13 BTU/hr·ft·°F
0.22 W/m·K0.13 BTU/hr·ft·°F

Specific Heat Capacity

1,900 J/kg·K0.45 BTU/lb·°F
2,000 J/kg·K0.48 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

150 µm/m·K83.3 µin/in·°F
180 µm/m·K100 µin/in·°F

Min Service Temperature

-50°C-58 °F
-60°C-76 °F

Heat Deflection Temp. @ 0.45 MPa

105°C221 °F
55°C131 °F

Heat Deflection Temp. @ 1.8 MPa

50°C122 °F
—

Vicat Softening Point (B50)

180°C356 °F
60°C140 °F

Limiting Oxygen Index

21%
19%

Max Service Temperature (short-term)

150°C302 °F
145°C293 °F

Same in both: Max Service Temperature (continuous) 120°C248 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Dielectric Constant (1 MHz)

4
2.4

Dissipation Factor (1 MHz)

0.02
0.0015

Volume Resistivity

1×10¹³ Ω·cm
1×10¹⁴ Ω·cm

Surface Resistivity

1×10¹⁴ Ω
1×10¹⁵ Ω

Same in both: Dielectric Strength 25 kV/mm635 V/mil · Comparative Tracking Index (CTI) 600 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
90 / 100

UV / Weathering Resistance

40 / 100
85 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

30 / 100
25 / 100

Weldability

72 / 100
75 / 100

Formability (cold)

85 / 100
90 / 100

Polishability

40 / 100
25 / 100

Mold Shrinkage

1.2%
2%

Melt Flow Rate

8 g/10 min
25 g/10 min

Processing Melt Temperature (typ.)

230°C446 °F
205°C401 °F

Same in both: Mold Temperature (typ.) 40°C104 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

115 MJ/kg49,441 BTU/lb
92 MJ/kg39,553 BTU/lb

Embodied Carbon (primary production)

5.2 kg CO₂/kg
3.4 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

2%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

33 kN·m/kg
9 kN·m/kg

Specific Stiffness (E / density)

0.2 MN·m/kg
0 MN·m/kg

Thermal Shock Resistance Index

0
1

Same in both: Thermal Diffusivity 0.1 mm²/s

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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scaleTPC (COPE/TPEE)

Manufacturing and finishing

CapabilityTPC (COPE/TPEE)TPV
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall——
Best machined surface——

TPC (COPE/TPEE) vs TPV — frequently asked

Is TPC (COPE/TPEE) stronger than TPV?

Yes. TPC (COPE/TPEE) has a typical tensile strength of 40 MPa (5.8 ksi) against 8 MPa (1.22 ksi) for TPV — about 4.8 times as much.

Which is cheaper, TPC (COPE/TPEE) or TPV?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, TPC (COPE/TPEE) or TPV?

TPC (COPE/TPEE), by a small margin. Both rate poor for machinability — 30/100 against 25/100 for TPV.

Ready to make it?

Upload a CAD file and FabDigit prices the part in TPC (COPE/TPEE) and TPV 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.