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Rigid 10K vs Formlabs Tough 2000

Polymer · grade comparison

Rigid 10K and Tough 2000 are both polymer grades. Rigid 10K is the stronger of the two: tensile strength 75 MPa (10.9 ksi) against 50 MPa (7.25 ksi) for Tough 2000, about 50% more. In exchange, Tough 2000 is the more ductile: elongation 22% versus 2.5% for Rigid 10K, and Rigid 10K is harder (85 Shore D vs 80 Shore D). Tough 2000 is lighter (1.15 g/cm³ vs 1.55 g/cm³ for Rigid 10K) and Rigid 10K is stiffer (5.5 GPa vs 2.4 GPa). On the shop floor, Tough 2000 machines more easily (good vs fair) and Tough 2000 sits in a lower cost tier (standard, $$) than Rigid 10K (premium, $$$).

Rigid 10KChoose it when strength drives the design, or when the part sees heat.

Tough 2000Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

Rigid 10K vs Tough 2000: properties

Rigid 10KTough 2000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

5.5 GPa0.8 Msi
2.4 GPa0.35 Msi

Poisson's Ratio

0.35
0.39

Tensile Strength (Ultimate)

75 MPa10.9 ksi
50 MPa7.3 ksi

Elongation at Break

2.5%
22%

Compressive Strength

105 MPa15.2 ksi
70 MPa10.2 ksi

Compressive Modulus

5 GPa0.73 Msi
2.1 GPa0.3 Msi

Flexural Strength

125 MPa18.1 ksi
68 MPa9.9 ksi

Flexural Modulus

5 GPa0.73 Msi
1.9 GPa0.28 Msi

Fracture Toughness (K_IC)

0.9 MPa·√m0.82 ksi·√in
—

Izod Impact, Notched

17 J/m0.32 ft·lbf/in
38 J/m0.71 ft·lbf/in

Hardness, Shore D

85 Shore D
80 Shore D

Hardness, Rockwell M

95 HRM
—

Yield Strength (0.2% offset)

—
44 MPa6.4 ksi

Hardness, Rockwell R

—
103 HRR

Physical

Density and transition temperatures.

Density

1.55 g/cm³0.06 lb/in³
1.15 g/cm³0.04 lb/in³

Glass Transition (Tg)

105°C221 °F
58°C136 °F

Water Absorption (24 h)

0.5%
0.8%

Water Absorption (Saturation)

—
1.8%

Refractive Index

—
1.51

Thermal

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

Thermal Conductivity

0.3 W/m·K0.17 BTU/hr·ft·°F
0.2 W/m·K0.12 BTU/hr·ft·°F

Specific Heat Capacity

1,250 J/kg·K0.3 BTU/lb·°F
1,500 J/kg·K0.36 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

45 µm/m·K25 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Max Service Temperature (continuous)

100°C212 °F
50°C122 °F

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Heat Deflection Temp. @ 0.45 MPa

130°C266 °F
49°C120 °F

Heat Deflection Temp. @ 1.8 MPa

105°C221 °F
42°C108 °F

Limiting Oxygen Index

21%
19%

Max Service Temperature (short-term)

150°C302 °F
70°C158 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

3.6
3.4

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Strength 15 kV/mm381 V/mil · Dissipation Factor (1 MHz) 0.03 · Volume Resistivity 1×10¹⁴ Ω·cm · Surface Resistivity 1×10¹⁴ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
55 / 100

UV / Weathering Resistance

25 / 100
30 / 100

Manufacturability

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

Machinability

40 / 100
55 / 100

Weldability

3 / 100
5 / 100

Formability (cold)

3 / 100
10 / 100

Polishability

55 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

200 L/kg24 gal/lb
260 L/kg31.2 gal/lb

Same in both: Embodied Energy (primary production) 115 MJ/kg49,441 BTU/lb · Embodied Carbon (primary production) 6 kg CO₂/kg · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

48 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

3.5 MN·m/kg
2.1 MN·m/kg

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 scaleFormlabs Tough 2000Formlabs Rigid 10K

Manufacturing and finishing

CapabilityRigid 10KTough 2000
Default conditionGlass FilledABS-like
Relative cost$$$ Premium$$ Standard
Min. machined wall——
Best machined surface——

Both are offered for Injection molding and 3D printing. Both take the same 12 finishes: Chrome Plating (Plastic), Conductive Coating, Dyeing (Nylon), EMI Shielding Coating, Painting, Primer Coating, Soft Touch Coating, Spray Painting, Tinted Coating, UV Coating, Vacuum Metallization, Waterproof Coating.

Rigid 10K vs Tough 2000 — frequently asked

Is Rigid 10K stronger than Tough 2000?

Yes. Rigid 10K has a typical tensile strength of 75 MPa (10.9 ksi) against 50 MPa (7.25 ksi) for Tough 2000 — about 50% more.

Which is cheaper, Rigid 10K or Tough 2000?

Tough 2000 is the lower-cost material: it sits in the standard tier ($$) while Rigid 10K is premium ($$$). 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, Rigid 10K or Tough 2000?

Tough 2000. Its machinability rates good (55/100) against fair (40/100) for Rigid 10K.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Rigid 10K and Tough 2000 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.