EAA vs EVA
Polymer · grade comparison
EAA and EVA are both polymer grades. EAA is the stronger of the two: yield strength 10 MPa (1.45 ksi) against 7 MPa (1.02 ksi) for EVA, about 43% more. In exchange, EVA is the more ductile: elongation 780% versus 550% for EAA, and EAA is harder (48 Shore D vs 32 Shore D). EAA is stiffer (0.13 GPa vs 0.05 GPa) and EVA conducts heat better (0.34 W/m·K vs 0.3 W/m·K). On the shop floor, EAA machines more easily (fair vs poor) and EVA sits in a lower cost tier (budget, $) than EAA (standard, $$).
EAAChoose it when strength drives the design, or when the part is machined in volume.
EVAChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
EAA 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.
Elastic (Young's) Modulus
Yield Strength (0.2% offset)
Elongation at Break
Flexural Modulus
Izod Impact, Notched
Hardness, Shore A
Hardness, Shore D
Tear Strength
Poisson's Ratio
Same in both: Tensile Strength (Ultimate) 17 MPa2.5 ksi
Physical
Density and transition temperatures.
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Refractive Index
Same in both: Density 0.94 g/cm³0.03 lb/in³ · Light Transmission 88%
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)
Heat Deflection Temp. @ 0.45 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Same in both: Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Same in both: Dielectric Strength 30 kV/mm762 V/mil
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
Formability (cold)
Polishability
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: 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.
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 18 kN·m/kg · Specific Stiffness (E / density) 0.1 MN·m/kg
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 | EAA | EVA |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EAA vs EVA — frequently asked
Is EAA stronger than EVA?
Yes. EAA has a typical yield strength of 10 MPa (1.45 ksi) against 7 MPa (1.02 ksi) for EVA — about 43% more. Tensile strength is 17 MPa (2.47 ksi) vs 17 MPa (2.47 ksi).
Which is cheaper, EAA or EVA?
EVA is the lower-cost material: it sits in the budget tier ($) while EAA 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, EAA or EVA?
EAA. Its machinability rates fair (35/100) against poor (25/100) for EVA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EAA 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.