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IXPE vs PE Foam Board

Polymer · grade comparison

IXPE and PE Foam Board are both polymer grades. IXPE is the more ductile: elongation 150% versus 80% for PE Foam Board. IXPE is stiffer (0 GPa vs 0 GPa). On the shop floor, IXPE welds better (very good vs good).

IXPEChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

IXPE vs PE Foam Board: properties

IXPEPE Foam Board

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0 GPa3.63×10⁻⁴ Msi
0 GPa1.45×10⁻⁴ Msi

Poisson's Ratio

0.15
0.1

Yield Strength (0.2% offset)

0.2 MPa0.03 ksi
—

Elongation at Break

150%
80%

Compressive Strength

0.04 MPa0.01 ksi
0.05 MPa0.01 ksi

Compressive Modulus

0 GPa3.19×10⁻⁴ Msi
0 GPa1.74×10⁻⁴ Msi

Flexural Strength

0.22 MPa0.03 ksi
—

Flexural Modulus

0 GPa2.9×10⁻⁴ Msi
—

Shear Strength

0.16 MPa0.02 ksi
—

Hardness, Shore A

10 Shore A
—

Compression Set (22 h, 70 °C)

12%
15%

Same in both: Tensile Strength (Ultimate) 0.35 MPa0.05 ksi · Tear Strength 1 kN/m5.7 lbf/in

Physical

Density and transition temperatures.

Water Absorption (24 h)

0.3%
0.8%

Water Absorption (Saturation)

1.5%
3%

Same in both: Density 0.03 g/cm³0 lb/in³ · Melting Temperature (Tm) 110°C230 °F · Glass Transition (Tg) -110°C-166 °F

Thermal

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

Thermal Conductivity

0.04 W/m·K0.02 BTU/hr·ft·°F
0.04 W/m·K0.02 BTU/hr·ft·°F

Specific Heat Capacity

2,000 J/kg·K0.48 BTU/lb·°F
2,200 J/kg·K0.53 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

200 µm/m·K111 µin/in·°F
120 µm/m·K66.7 µin/in·°F

Max Service Temperature (continuous)

85°C185 °F
80°C176 °F

Vicat Softening Point (B50)

90°C194 °F
—

Max Service Temperature (short-term)

100°C212 °F
95°C203 °F

Same in both: Min Service Temperature -60°C-76 °F · Limiting Oxygen Index 18%

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹⁴ Ω·m3.94×10²¹ µΩ·in
1×10¹³ Ω·m3.94×10²⁰ µΩ·in

Dielectric Constant (1 MHz)

1.1
1.08

Volume Resistivity

1×10¹⁶ Ω·cm
1×10¹⁵ Ω·cm

Same in both: Dissipation Factor (1 MHz) 2×10⁻⁴ · Surface Resistivity 1×10¹⁴ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

90 / 100
92 / 100

UV / Weathering Resistance

30 / 100
25 / 100

Manufacturability

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

Machinability

85 / 100
88 / 100

Weldability

70 / 100
60 / 100

Formability (cold)

80 / 100
70 / 100

Melt Flow Rate

—
2 g/10 min

Processing Melt Temperature (typ.)

—
110°C230 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

92 MJ/kg39,553 BTU/lb
85 MJ/kg36,543 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
2.6 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
90 L/kg10.8 gal/lb

Typical Recycled Content

0%
10%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

0.1 MN·m/kg
0 MN·m/kg

Thermal Diffusivity

0.6 mm²/s
0.5 mm²/s

Same in both: Specific Strength (UTS / density) 11 kN·m/kg · 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 scaleIXPE

Manufacturing and finishing

CapabilityIXPEPE Foam Board
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

IXPE vs PE Foam Board — frequently asked

What is the difference between IXPE and PE Foam Board?

IXPE and PE Foam Board are both polymer grades. IXPE is the more ductile: elongation 150% versus 80% for PE Foam Board. IXPE is stiffer (0 GPa vs 0 GPa).

Which is cheaper, IXPE or PE Foam Board?

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

Which welds better, IXPE or PE Foam Board?

IXPE. Its weldability rates very good (70/100) against good (60/100) for PE Foam Board.

Ready to make it?

Upload a CAD file and FabDigit prices the part in IXPE and PE Foam Board 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.