mPPE ESD vs mPPE GF30
Polymer · mPPE grade comparison
mPPE ESD and mPPE GF30 are two grades of the same polymer grade, mPPE: ESD (ESD / static-dissipative) versus GF30 (30% glass-fiber reinforced). The chemistry is identical, so every difference below comes from the condition. mPPE GF30 is the stronger of the two: tensile strength 112 MPa (16.2 ksi) against 60 MPa (8.7 ksi) for mPPE ESD, about 87% more. In exchange, mPPE ESD is the more ductile: elongation 8% versus 3.5% for mPPE GF30. MPPE ESD is lighter (1.12 g/cm³ vs 1.27 g/cm³ for mPPE GF30) and mPPE GF30 is stiffer (7.8 GPa vs 3 GPa). On the shop floor, mPPE ESD machines more easily (good vs fair) and mPPE GF30 welds better (good vs fair).
mPPE ESDChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
mPPE GF30Choose it when strength drives the design, or when the part sees heat.
mPPE ESD vs mPPE GF30: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Flexural Strength
Flexural Modulus
Fracture Toughness (K_IC)
Izod Impact, Notched
Hardness, Rockwell M
Hardness, Rockwell R
Same in both: Shear Modulus 0.9 GPa0.13 Msi · Bulk Modulus 3 GPa0.49 Msi · Poisson's Ratio 0.38 · Compressive Strength 90 MPa13.1 ksi · Compressive Modulus 2.3 GPa0.33 Msi · Shear Strength 50 MPa7.3 ksi
Physical
Density and transition temperatures.
Density
Same in both: Glass Transition (Tg) 145°C293 °F · Water Absorption (24 h) 0.07% · Water Absorption (Saturation) 0.6%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Limiting Oxygen Index
Same in both: Specific Heat Capacity 1,400 J/kg·K0.33 BTU/lb·°F · Min Service Temperature -40°C-40 °F · Vicat Softening Point (B50) 140°C284 °F · Max Service Temperature (short-term) 130°C266 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Surface Resistivity
Same in both: Dielectric Strength 21 kV/mm533 V/mil · Dielectric Constant (1 MHz) 2.65 · Dissipation Factor (1 MHz) 0.0012 · Comparative Tracking Index (CTI) 400 V
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)
Mold Shrinkage
Melt Flow Rate
Same in both: Polishability 60 / 100 · Processing Melt Temperature (typ.) 280°C536 °F · Mold Temperature (typ.) 90°C194 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 110 MJ/kg47,292 BTU/lb · Embodied Carbon (primary production) 4.6 kg CO₂/kg · Embodied Water 210 L/kg25.2 gal/lb · Typical Recycled Content 5%
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.
mPPE ESD vs mPPE GF30 — frequently asked
Is mPPE GF30 stronger than mPPE ESD?
Yes. mPPE GF30 has a typical tensile strength of 112 MPa (16.2 ksi) against 60 MPa (8.7 ksi) for mPPE ESD — about 87% more.
Which grade does FabDigit quote by default, ESD or GF30?
UNF is the default mPPE condition in the FabDigit quote flow (neither ESD nor GF30). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, mPPE ESD or mPPE GF30?
mPPE ESD. Its machinability rates good (55/100) against fair (45/100) for mPPE GF30; for welding the order is mPPE GF30 first (good, 65/100) then mPPE ESD (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in mPPE ESD and mPPE GF30 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.