EBA vs EVA
Polymer · grade comparison
EBA and EVA are both polymer grades. EVA is the stronger of the two: tensile strength 17 MPa (2.47 ksi) against 8 MPa (1.16 ksi) for EBA, about 113% more. EVA is the more ductile: elongation 780% versus 700% for EBA. On the shop floor, EVA machines more easily (25 vs 15 out of 100) and EVA sits in a lower cost tier (budget, $) than EBA (standard, $$).
EVAChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
EBA vs EVA: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Flexural Modulus
Hardness, Shore A
Hardness, Shore D
Tear Strength
Yield Strength (0.2% offset)
Same in both: Elastic (Young's) Modulus 0.05 GPa0.01 Msi
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (24 h)
Refractive Index
Light Transmission
Water Absorption (Saturation)
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Max Service Temperature (continuous)
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Heat Deflection Temp. @ 0.45 MPa
Same in both: Thermal Expansion (CTE, 20–100 °C) 200 µm/m·K111 µin/in·°F · Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Comparative Tracking Index (CTI)
Same in both: Dielectric Constant (1 MHz) 2.9
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: UV / Weathering Resistance 35 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Formability (cold) 90 / 100 · Polishability 30 / 100 · Mold Temperature (typ.) 30°C86 °F
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 Shock Resistance Index
Same in both: Specific Stiffness (E / density) 0.1 MN·m/kg · Thermal Diffusivity 0.2 mm²/s
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 | EBA | EVA |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EBA vs EVA — frequently asked
Is EVA stronger than EBA?
Yes. EVA has a typical tensile strength of 17 MPa (2.47 ksi) against 8 MPa (1.16 ksi) for EBA — about 113% more.
Which is cheaper, EBA or EVA?
EVA is the lower-cost material: it sits in the budget tier ($) while EBA is standard ($$). 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, EBA or EVA?
EVA, by a small margin. Both rate poor for machinability — 25/100 against 15/100 for EBA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EBA and EVA 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.