FabDigitFabDigit

Xydar vs Zenite

Polymer · grade comparison

Xydar and Zenite are both polymer grades. Zenite is the stronger of the two: tensile strength 165 MPa (23.9 ksi) against 130 MPa (18.9 ksi) for Xydar, about 27% more. Zenite is the more ductile: elongation 3.5% versus 2.5% for Xydar. Xydar is stiffer (12 GPa vs 11 GPa) and Xydar runs hotter in service (240°C vs 220°C continuous).

XydarChoose it when the part sees heat.

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

Xydar vs Zenite: properties

XydarZenite

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

12 GPa1.7 Msi
11 GPa1.6 Msi

Poisson's Ratio

0.35
0.38

Tensile Strength (Ultimate)

130 MPa18.9 ksi
165 MPa23.9 ksi

Elongation at Break

2.5%
3.5%

Compressive Strength

65 MPa9.4 ksi
60 MPa8.7 ksi

Flexural Strength

135 MPa19.6 ksi
160 MPa23.2 ksi

Flexural Modulus

11 GPa1.6 Msi
9 GPa1.3 Msi

Shear Strength

50 MPa7.3 ksi
45 MPa6.5 ksi

Fracture Toughness (K_IC)

2.5 MPa·√m2.3 ksi·√in
—

Izod Impact, Notched

160 J/m3 ft·lbf/in
350 J/m6.6 ft·lbf/in

Shear Modulus

—
1.6 GPa0.23 Msi

Same in both: Hardness, Shore D 88 Shore D · Hardness, Rockwell M 75 HRM

Physical

Density and transition temperatures.

Melting Temperature (Tm)

350°C662 °F
335°C635 °F

Glass Transition (Tg)

135°C275 °F
125°C257 °F

Water Absorption (24 h)

0.03%
0.02%

Same in both: Density 1.4 g/cm³0.05 lb/in³ · Water Absorption (Saturation) 0.1%

Thermal

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

Thermal Conductivity

0.2 W/m·K0.12 BTU/hr·ft·°F
0.3 W/m·K0.17 BTU/hr·ft·°F

Specific Heat Capacity

1,150 J/kg·K0.27 BTU/lb·°F
1,200 J/kg·K0.29 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8 µm/m·K4.4 µin/in·°F
5 µm/m·K2.8 µin/in·°F

Max Service Temperature (continuous)

240°C464 °F
220°C428 °F

Min Service Temperature

-100°C-148 °F
-50°C-58 °F

Heat Deflection Temp. @ 0.45 MPa

300°C572 °F
250°C482 °F

Heat Deflection Temp. @ 1.8 MPa

240°C464 °F
190°C374 °F

Limiting Oxygen Index

42%
40%

Max Service Temperature (short-term)

300°C572 °F
280°C536 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

3.7
3.3

Dissipation Factor (1 MHz)

0.005
0.003

Comparative Tracking Index (CTI)

200 V
175 V

Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 35 kV/mm889 V/mil · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁵ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

UV / Weathering Resistance

55 / 100
45 / 100

Same in both: Corrosion Resistance 92 / 100

Manufacturability

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

Weldability

25 / 100
30 / 100

Mold Shrinkage

0.15%
0.1%

Processing Melt Temperature (typ.)

380°C716 °F
345°C653 °F

Mold Temperature (typ.)

120°C248 °F
100°C212 °F

Same in both: Machinability 55 / 100 · Formability (cold) 20 / 100 · Polishability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

220 MJ/kg94,583 BTU/lb
145 MJ/kg62,339 BTU/lb

Embodied Carbon (primary production)

10 kg CO₂/kg
7 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

93 kN·m/kg
118 kN·m/kg

Specific Stiffness (E / density)

8.6 MN·m/kg
7.9 MN·m/kg

Thermal Diffusivity

0.1 mm²/s
0.2 mm²/s

Thermal Shock Resistance Index

0
1

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 scale

Manufacturing and finishing

CapabilityXydarZenite
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Xydar vs Zenite — frequently asked

Is Zenite stronger than Xydar?

Yes. Zenite has a typical tensile strength of 165 MPa (23.9 ksi) against 130 MPa (18.9 ksi) for Xydar — about 27% more.

Which is cheaper, Xydar or Zenite?

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

Which welds better, Xydar or Zenite?

Zenite. Its weldability rates poor (30/100) against poor (25/100) for Xydar.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Xydar and Zenite 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.