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High Temp vs Stratasys PC-ISO

Polymer · grade comparison

High Temp and PC-ISO are both polymer grades, both specialty plastic. PC-ISO is the stronger of the two: tensile strength 57 MPa (8.27 ksi) against 50 MPa (7.25 ksi) for High Temp, about 14% more. PC-ISO is the more ductile: elongation 4.3% versus 2.8% for High Temp, and High Temp is harder (88 Shore D vs 80 Shore D). High Temp is stiffer (3.5 GPa vs 2 GPa) and High Temp runs hotter in service (150°C vs 118°C continuous). On the shop floor, High Temp sits in a lower cost tier (premium, $$$) than PC-ISO (high, $$$$).

High TempChoose it when the part sees heat, or when cost is the deciding factor.

PC-ISOChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

High Temp vs PC-ISO: properties

High TempPC-ISO

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

3.5 GPa0.51 Msi
2 GPa0.29 Msi

Poisson's Ratio

0.38
0.37

Tensile Strength (Ultimate)

50 MPa7.3 ksi
57 MPa8.3 ksi

Elongation at Break

2.8%
4.3%

Compressive Strength

110 MPa16 ksi
62 MPa9 ksi

Flexural Strength

100 MPa14.5 ksi
90 MPa13.1 ksi

Flexural Modulus

3.1 GPa0.45 Msi
2.1 GPa0.3 Msi

Izod Impact, Notched

14 J/m0.26 ft·lbf/in
86 J/m1.6 ft·lbf/in

Hardness, Shore D

88 Shore D
80 Shore D

Hardness, Rockwell M

95 HRM
70 HRM

Shear Modulus

—
0.75 GPa0.11 Msi

Bulk Modulus

—
3 GPa0.48 Msi

Yield Strength (0.2% offset)

—
52 MPa7.5 ksi

Compressive Modulus

—
2 GPa0.29 Msi

Shear Strength

—
40 MPa5.8 ksi

Fracture Toughness (K_IC)

—
2 MPa·√m1.8 ksi·√in

Hardness, Rockwell R

—
115 HRR

Physical

Density and transition temperatures.

Density

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

Glass Transition (Tg)

130°C266 °F
161°C322 °F

Water Absorption (24 h)

0.6%
0.15%

Water Absorption (Saturation)

—
0.35%

Refractive Index

—
1.586

Thermal

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

Specific Heat Capacity

1,400 J/kg·K0.33 BTU/lb·°F
1,200 J/kg·K0.29 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

75 µm/m·K41.7 µin/in·°F
68 µm/m·K37.8 µin/in·°F

Max Service Temperature (continuous)

150°C302 °F
118°C244 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Heat Deflection Temp. @ 0.45 MPa

238°C460 °F
133°C271 °F

Heat Deflection Temp. @ 1.8 MPa

130°C266 °F
127°C261 °F

Max Service Temperature (short-term)

230°C446 °F
140°C284 °F

Vicat Softening Point (B50)

—
150°C302 °F

Limiting Oxygen Index

—
26%

Same in both: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹³ Ω·m3.94×10²⁰ µΩ·in

Dielectric Constant (1 MHz)

3.4
2.9

Volume Resistivity

1×10¹⁴ Ω·cm
1×10¹⁵ Ω·cm

Dielectric Strength

—
17 kV/mm432 V/mil

Dissipation Factor (1 MHz)

—
0.01

Surface Resistivity

—
1×10¹⁵ Ω

Comparative Tracking Index (CTI)

—
250 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
78 / 100

UV / Weathering Resistance

35 / 100
30 / 100

Manufacturability

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

Machinability

55 / 100
62 / 100

Polishability

65 / 100
50 / 100

Weldability

—
55 / 100

Formability (cold)

—
25 / 100

Processing Melt Temperature (typ.)

—
350°C662 °F

Mold Temperature (typ.)

—
145°C293 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

110 MJ/kg47,292 BTU/lb
105 MJ/kg45,142 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
6.8 kg CO₂/kg

Embodied Water

—
220 L/kg26.4 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

42 kN·m/kg
48 kN·m/kg

Specific Stiffness (E / density)

2.9 MN·m/kg
1.7 MN·m/kg

Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0

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 scaleStratasys PC-ISOFormlabs High Temp

Manufacturing and finishing

CapabilityHigh TempPC-ISO
Injection moldingYes—
Default conditionStandard—
Relative cost$$$ Premium$$$$ High
Min. machined wall——
Best machined surface——
Chrome Plating (Plastic)Yes—
Spray PaintingYes—

Both are offered for 3D printing. They share 10 finishes: Conductive Coating, Dyeing (Nylon), EMI Shielding Coating, Painting, Primer Coating, Soft Touch Coating, Tinted Coating, UV Coating, Vacuum Metallization, Waterproof Coating.

High Temp vs PC-ISO — frequently asked

Is PC-ISO stronger than High Temp?

Yes. PC-ISO has a typical tensile strength of 57 MPa (8.27 ksi) against 50 MPa (7.25 ksi) for High Temp — about 14% more.

Which is cheaper, High Temp or PC-ISO?

High Temp is the lower-cost material: it sits in the premium tier ($$$) while PC-ISO is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, High Temp or PC-ISO?

PC-ISO, by a small margin. Both rate good for machinability — 62/100 against 55/100 for High Temp.

Ready to make it?

Upload a CAD file and FabDigit prices the part in High Temp and PC-ISO 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.