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EVA Foam Sheet (Footwear Grade) vs IXPE

Polymer · grade comparison

EVA Foam Sheet (Footwear Grade) and IXPE are both polymer grades. EVA Foam Sheet (Footwear Grade) is the stronger of the two: tensile strength 2 MPa (0.29 ksi) against 0.35 MPa (0.0508 ksi) for IXPE, about 5.7 times as much. EVA Foam Sheet (Footwear Grade) is the more ductile: elongation 250% versus 150% for IXPE. IXPE is lighter (0.03 g/cm³ vs 0.18 g/cm³ for EVA Foam Sheet (Footwear Grade)) and EVA Foam Sheet (Footwear Grade) is stiffer (0.01 GPa vs 0 GPa). On the shop floor, IXPE welds better (very good vs good).

EVA Foam Sheet (Footwear Grade)Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

IXPEChoose it when weight is the constraint, or when the part sees heat.

EVA Foam Sheet (Footwear Grade) vs IXPE: properties

EVA Foam Sheet (Footwear Grade)IXPE

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
0 GPa3.63×10⁻⁴ Msi

Poisson's Ratio

0.3
0.15

Tensile Strength (Ultimate)

2 MPa0.29 ksi
0.35 MPa0.05 ksi

Elongation at Break

250%
150%

Compressive Strength

0.3 MPa0.04 ksi
0.04 MPa0.01 ksi

Compressive Modulus

0.01 GPa7.25×10⁻⁴ Msi
0 GPa3.19×10⁻⁴ Msi

Shear Strength

0.55 MPa0.08 ksi
0.16 MPa0.02 ksi

Hardness, Shore A

40 Shore A
10 Shore A

Hardness, Shore D

12 Shore D
—

Tear Strength

5 kN/m28.6 lbf/in
1 kN/m5.7 lbf/in

Compression Set (22 h, 70 °C)

30%
12%

Yield Strength (0.2% offset)

—
0.2 MPa0.03 ksi

Flexural Strength

—
0.22 MPa0.03 ksi

Flexural Modulus

—
0 GPa2.9×10⁻⁴ Msi

Physical

Density and transition temperatures.

Density

0.18 g/cm³0.01 lb/in³
0.03 g/cm³0 lb/in³

Melting Temperature (Tm)

85°C185 °F
110°C230 °F

Glass Transition (Tg)

-30°C-22 °F
-110°C-166 °F

Same in both: Water Absorption (24 h) 0.3% · Water Absorption (Saturation) 1.5%

Thermal

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

Thermal Conductivity

0.05 W/m·K0.03 BTU/hr·ft·°F
0.04 W/m·K0.02 BTU/hr·ft·°F

Specific Heat Capacity

2,100 J/kg·K0.5 BTU/lb·°F
2,000 J/kg·K0.48 BTU/lb·°F

Max Service Temperature (continuous)

65°C149 °F
85°C185 °F

Min Service Temperature

-40°C-40 °F
-60°C-76 °F

Limiting Oxygen Index

19%
18%

Max Service Temperature (short-term)

85°C185 °F
100°C212 °F

Vicat Softening Point (B50)

—
90°C194 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 200 µm/m·K111 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

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

Dielectric Constant (1 MHz)

1.3
1.1

Volume Resistivity

1×10¹⁵ Ω·cm
1×10¹⁶ Ω·cm

Dissipation Factor (1 MHz)

—
2×10⁻⁴

Surface Resistivity

—
1×10¹⁴ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

UV / Weathering Resistance

45 / 100
30 / 100

Same in both: Corrosion Resistance 90 / 100

Manufacturability

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

Weldability

60 / 100
70 / 100

Formability (cold)

90 / 100
80 / 100

Mold Shrinkage

3%
—

Melt Flow Rate

2.5 g/10 min
—

Processing Melt Temperature (typ.)

120°C248 °F
—

Mold Temperature (typ.)

170°C338 °F
—

Same in both: Machinability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

82 MJ/kg35,254 BTU/lb
92 MJ/kg39,553 BTU/lb

Embodied Carbon (primary production)

2.9 kg CO₂/kg
3 kg CO₂/kg

Embodied Water

160 L/kg19.2 gal/lb
120 L/kg14.4 gal/lb

Typical Recycled Content

10%
0%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

0 MN·m/kg
0.1 MN·m/kg

Thermal Diffusivity

0.1 mm²/s
0.6 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

CapabilityEVA Foam Sheet (Footwear Grade)IXPE
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

EVA Foam Sheet (Footwear Grade) vs IXPE — frequently asked

Is EVA Foam Sheet (Footwear Grade) stronger than IXPE?

Yes. EVA Foam Sheet (Footwear Grade) has a typical tensile strength of 2 MPa (0.29 ksi) against 0.35 MPa (0.0508 ksi) for IXPE — about 5.7 times as much.

Which is cheaper, EVA Foam Sheet (Footwear Grade) or IXPE?

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, EVA Foam Sheet (Footwear Grade) or IXPE?

IXPE. Its weldability rates very good (70/100) against good (60/100) for EVA Foam Sheet (Footwear Grade).

Ready to make it?

Upload a CAD file and FabDigit prices the part in EVA Foam Sheet (Footwear Grade) and IXPE 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.