mPPE GF30 vs mPPE MIN
Polymer · mPPE grade comparison
mPPE GF30 and mPPE MIN are two grades of the same polymer grade, mPPE: GF30 (30% glass-fiber reinforced) versus MIN (mineral / talc filled). The chemistry is identical, so every difference below comes from the condition. mPPE GF30 is the stronger of the two: yield strength 58 MPa (8.41 ksi) against 52 MPa (7.54 ksi) for mPPE MIN, about 12% more; tensile strength follows at 112 MPa (16.2 ksi) vs 52 MPa (7.54 ksi). In exchange, mPPE MIN is the more ductile: elongation 12% versus 3.5% for mPPE GF30. MPPE GF30 is stiffer (7.8 GPa vs 3.4 GPa) and mPPE GF30 runs hotter in service (110°C vs 100°C continuous). On the shop floor, mPPE MIN machines more easily (good vs fair) and mPPE GF30 welds better (65 vs 55 out of 100).
mPPE GF30Choose it when strength drives the design, or when the part sees heat.
mPPE MINChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
mPPE GF30 vs mPPE MIN: 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
Compressive Strength
Flexural Strength
Flexural Modulus
Shear Strength
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 Modulus 2.3 GPa0.33 Msi
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
Vicat Softening Point (B50)
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 · Max Service Temperature (short-term) 130°C266 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹⁴ Ω·m3.94×10²¹ µΩ·in · Dielectric Strength 21 kV/mm533 V/mil · Dielectric Constant (1 MHz) 2.65 · Dissipation Factor (1 MHz) 0.0012 · Volume Resistivity 1×10¹⁶ Ω·cm · Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 400 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 80 / 100 · 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 GF30 vs mPPE MIN — frequently asked
Is mPPE GF30 stronger than mPPE MIN?
Yes. mPPE GF30 has a typical yield strength of 58 MPa (8.41 ksi) against 52 MPa (7.54 ksi) for mPPE MIN — about 12% more. Tensile strength is 112 MPa (16.2 ksi) vs 52 MPa (7.54 ksi).
Which grade does FabDigit quote by default, GF30 or MIN?
UNF is the default mPPE condition in the FabDigit quote flow (neither GF30 nor MIN). 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 GF30 or mPPE MIN?
mPPE MIN. 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 MIN (good, 55/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in mPPE GF30 and mPPE MIN 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.