EEA vs EMAA
Polymer · grade comparison
EEA and EMAA are both polymer grades. EMAA is the stronger of the two: yield strength 10 MPa (1.45 ksi) against 5 MPa (0.725 ksi) for EEA, about 100% more; tensile strength follows at 30 MPa (4.35 ksi) vs 12 MPa (1.74 ksi). In exchange, EEA is the more ductile: elongation 700% versus 400% for EMAA, and EMAA is harder (55 Shore D vs 32 Shore D). EMAA is stiffer (0.2 GPa vs 0.05 GPa) and EEA conducts heat better (0.3 W/m·K vs 0.25 W/m·K). On the shop floor, EMAA machines more easily (30 vs 15 out of 100) and EEA sits in a lower cost tier (standard, $$) than EMAA (premium, $$$).
EEAChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
EMAAChoose it when strength drives the design, or when the part is machined in volume.
EEA vs EMAA: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Flexural Modulus
Hardness, Shore A
Hardness, Shore D
Tear Strength
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (24 h)
Refractive Index
Water Absorption (Saturation)
Light Transmission
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Vicat Softening Point (B50)
Max Service Temperature (short-term)
Same in both: Specific Heat Capacity 2,100 J/kg·K0.5 BTU/lb·°F · Limiting Oxygen Index 18%
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 · Dielectric Strength 25 kV/mm635 V/mil · 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
Same in both: Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Same in both: Modulus of Resilience 250 kJ/m³ · 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 | EEA | EMAA |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EEA vs EMAA — frequently asked
Is EMAA stronger than EEA?
Yes. EMAA has a typical yield strength of 10 MPa (1.45 ksi) against 5 MPa (0.725 ksi) for EEA — about 100% more. Tensile strength is 30 MPa (4.35 ksi) vs 12 MPa (1.74 ksi).
Which is cheaper, EEA or EMAA?
EEA is the lower-cost material: it sits in the standard tier ($$) while EMAA is premium ($$$). 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, EEA or EMAA?
EMAA, by a small margin. Both rate poor for machinability — 30/100 against 15/100 for EEA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EEA and EMAA 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.