EVA Foam Sheet (Footwear Grade) vs TPO Foam
Polymer · grade comparison
EVA Foam Sheet (Footwear Grade) and TPO Foam 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 TPO Foam, about 5.7 times as much. EVA Foam Sheet (Footwear Grade) is the more ductile: elongation 250% versus 150% for TPO Foam. TPO Foam is lighter (0.05 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, EVA Foam Sheet (Footwear Grade) machines more easily (excellent vs good), TPO Foam welds better (very good vs good), and EVA Foam Sheet (Footwear Grade) sits in a lower cost tier (standard, $$) than TPO Foam (premium, $$$).
EVA Foam Sheet (Footwear Grade)Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
TPO FoamChoose it when weight is the constraint, or when the part sees heat.
EVA Foam Sheet (Footwear Grade) vs TPO Foam: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
EVA Foam Sheet (Footwear Grade)TPO Foam
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Shear Strength
Hardness, Shore A
Hardness, Shore D
Tear Strength
Compression Set (22 h, 70 °C)
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Limiting Oxygen Index
Max Service Temperature (short-term)
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Volume Resistivity 1×10¹⁵ Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Mold Temperature (typ.)
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Thermal Diffusivity
Same in both: Specific Stiffness (E / density) 0 MN·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.
Manufacturing and finishing
| Capability | EVA Foam Sheet (Footwear Grade) | TPO Foam |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EVA Foam Sheet (Footwear Grade) vs TPO Foam — frequently asked
Is EVA Foam Sheet (Footwear Grade) stronger than TPO Foam?
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 TPO Foam — about 5.7 times as much.
Which is cheaper, EVA Foam Sheet (Footwear Grade) or TPO Foam?
EVA Foam Sheet (Footwear Grade) is the lower-cost material: it sits in the standard tier ($$) while TPO Foam is premium ($$$). 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, EVA Foam Sheet (Footwear Grade) or TPO Foam?
EVA Foam Sheet (Footwear Grade). Its machinability rates excellent (85/100) against good (60/100) for TPO Foam; for welding the order is TPO Foam first (very good, 70/100) then EVA Foam Sheet (Footwear Grade) (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in EVA Foam Sheet (Footwear Grade) and TPO Foam 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.