POM-C ESD vs POM-C+PTFE
Polymer · grade comparison
POM-C ESD and POM-C+PTFE are both polymer grades. POM-C ESD is the stronger of the two: yield strength 50 MPa (7.25 ksi) against 46 MPa (6.67 ksi) for POM-C+PTFE, about 9% more; tensile strength follows at 52 MPa (7.54 ksi) vs 48 MPa (6.96 ksi). In exchange, POM-C+PTFE is the more ductile: elongation 20% versus 12% for POM-C ESD. POM-C ESD is lighter (1.44 g/cm³ vs 1.54 g/cm³ for POM-C+PTFE) and POM-C ESD is stiffer (3.2 GPa vs 2.7 GPa). On the shop floor, POM-C ESD welds better (fair vs not recommended).
POM-C ESDChoose it when strength drives the design, or when weight is the constraint.
POM-C+PTFEChoose it when the part is bent, formed or impact-loaded.
POM-C ESD vs POM-C+PTFE: 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
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell R
Fracture Toughness (K_IC)
Same in both: Bulk Modulus 4 GPa0.58 Msi · Hardness, Rockwell M 78 HRM
Physical
Density and transition temperatures.
Density
Water Absorption (Saturation)
Same in both: Melting Temperature (Tm) 166°C331 °F · Glass Transition (Tg) -60°C-76 °F · Water Absorption (24 h) 0.2%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Min Service Temperature
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Same in both: Max Service Temperature (continuous) 100°C212 °F · Heat Deflection Temp. @ 0.45 MPa 150°C302 °F · Max Service Temperature (short-term) 140°C284 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Surface Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Comparative Tracking Index (CTI)
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
Mold Shrinkage
Melt Flow Rate
Processing Melt Temperature (typ.)
Same in both: Formability (cold) 25 / 100 · Polishability 50 / 100 · Mold Temperature (typ.) 90°C194 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 220 L/kg26.4 gal/lb · Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: 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 | POM-C ESD | POM-C+PTFE |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
POM-C ESD vs POM-C+PTFE — frequently asked
Is POM-C ESD stronger than POM-C+PTFE?
Yes. POM-C ESD has a typical yield strength of 50 MPa (7.25 ksi) against 46 MPa (6.67 ksi) for POM-C+PTFE — about 9% more. Tensile strength is 52 MPa (7.54 ksi) vs 48 MPa (6.96 ksi).
Which is cheaper, POM-C ESD or POM-C+PTFE?
Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, POM-C ESD or POM-C+PTFE?
POM-C+PTFE. Its machinability rates excellent (85/100) against very good (80/100) for POM-C ESD; for welding the order is POM-C ESD first (fair, 35/100) then POM-C+PTFE (not recommended, 12/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in POM-C ESD and POM-C+PTFE 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.