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POM-C MF (mineral-filled) vs POM-C UV

Polymer · grade comparison

POM-C MF (mineral-filled) and POM-C UV are both polymer grades. POM-C UV is the stronger of the two: yield strength 63 MPa (9.14 ksi) against 55 MPa (7.98 ksi) for POM-C MF (mineral-filled), about 15% more; tensile strength follows at 64 MPa (9.28 ksi) vs 56 MPa (8.12 ksi). POM-C UV is the more ductile: elongation 30% versus 8% for POM-C MF (mineral-filled). POM-C UV is lighter (1.41 g/cm³ vs 1.56 g/cm³ for POM-C MF (mineral-filled)) and POM-C MF (mineral-filled) is stiffer (4 GPa vs 2.8 GPa). On the shop floor, POM-C UV machines more easily (excellent vs very good).

POM-C UVChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

POM-C MF (mineral-filled) vs POM-C UV: properties

POM-C MF (mineral-filled)POM-C UV

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

4 GPa0.58 Msi
2.8 GPa0.41 Msi

Shear Modulus

1.5 GPa0.21 Msi
1 GPa0.15 Msi

Tensile Strength (Ultimate)

56 MPa8.1 ksi
64 MPa9.3 ksi

Yield Strength (0.2% offset)

55 MPa8 ksi
63 MPa9.1 ksi

Elongation at Break

8%
30%

Compressive Modulus

3.6 GPa0.52 Msi
2.8 GPa0.41 Msi

Flexural Strength

85 MPa12.3 ksi
90 MPa13.1 ksi

Flexural Modulus

3.9 GPa0.57 Msi
2.6 GPa0.38 Msi

Shear Strength

50 MPa7.3 ksi
55 MPa8 ksi

Izod Impact, Notched

32 J/m0.6 ft·lbf/in
65 J/m1.2 ft·lbf/in

Hardness, Shore D

82 Shore D
81 Shore D

Hardness, Rockwell M

82 HRM
80 HRM

Hardness, Rockwell R

119 HRR
118 HRR

Bulk Modulus

—
4 GPa0.61 Msi

Fracture Toughness (K_IC)

—
3.5 MPa·√m3.2 ksi·√in

Same in both: Poisson's Ratio 0.38 · Compressive Strength 100 MPa14.5 ksi

Physical

Density and transition temperatures.

Density

1.56 g/cm³0.06 lb/in³
1.41 g/cm³0.05 lb/in³

Water Absorption (24 h)

0.2%
0.22%

Water Absorption (Saturation)

0.65%
0.8%

Same in both: Melting Temperature (Tm) 166°C331 °F · Glass Transition (Tg) -60°C-76 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.4 W/m·K0.23 BTU/hr·ft·°F
0.31 W/m·K0.18 BTU/hr·ft·°F

Specific Heat Capacity

1,400 J/kg·K0.33 BTU/lb·°F
1,470 J/kg·K0.35 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

75 µm/m·K41.7 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Min Service Temperature

-40°C-40 °F
-50°C-58 °F

Heat Deflection Temp. @ 0.45 MPa

158°C316 °F
155°C311 °F

Heat Deflection Temp. @ 1.8 MPa

105°C221 °F
98°C208 °F

Vicat Softening Point (B50)

158°C316 °F
155°C311 °F

Limiting Oxygen Index

16%
15%

Same in both: Max Service Temperature (continuous) 100°C212 °F · Max Service Temperature (short-term) 140°C284 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

4
3.8

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Strength 20 kV/mm508 V/mil · Dissipation Factor (1 MHz) 0.006 · Volume Resistivity 1×10¹⁴ Ω·cm · Surface Resistivity 1×10¹⁴ Ω · Comparative Tracking Index (CTI) 600 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

72 / 100
80 / 100

UV / Weathering Resistance

25 / 100
72 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

72 / 100
88 / 100

Weldability

30 / 100
35 / 100

Formability (cold)

25 / 100
40 / 100

Polishability

50 / 100
65 / 100

Mold Shrinkage

1.1%
2%

Melt Flow Rate

8 g/10 min
9 g/10 min

Processing Melt Temperature (typ.)

205°C401 °F
200°C392 °F

Same in both: Mold Temperature (typ.) 90°C194 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

82 MJ/kg35,254 BTU/lb
96 MJ/kg41,273 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
4.4 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
180 L/kg21.6 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

36 kN·m/kg
45 kN·m/kg

Specific Stiffness (E / density)

2.6 MN·m/kg
2 MN·m/kg

Modulus of Resilience

378 kJ/m³
709 kJ/m³

Thermal Diffusivity

0.2 mm²/s
0.1 mm²/s

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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scalePOM-C UVPOM-C MF (mineral-filled)

Manufacturing and finishing

CapabilityPOM-C MF (mineral-filled)POM-C UV
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

POM-C MF (mineral-filled) vs POM-C UV — frequently asked

Is POM-C UV stronger than POM-C MF (mineral-filled)?

Yes. POM-C UV has a typical yield strength of 63 MPa (9.14 ksi) against 55 MPa (7.98 ksi) for POM-C MF (mineral-filled) — about 15% more. Tensile strength is 64 MPa (9.28 ksi) vs 56 MPa (8.12 ksi).

Which is cheaper, POM-C MF (mineral-filled) or POM-C UV?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, POM-C MF (mineral-filled) or POM-C UV?

POM-C UV. Its machinability rates excellent (88/100) against very good (72/100) for POM-C MF (mineral-filled); for welding the order is POM-C UV first (fair, 35/100) then POM-C MF (mineral-filled) (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in POM-C MF (mineral-filled) and POM-C UV 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.