FabDigit

Flexible Resin vs Tough 2000 and 2 more: properties

Flexible ResinTough 2000Rigid 10KClear

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa0 Msi
2.4 GPa0.35 Msi
5.5 GPa0.8 Msi
2.8 GPa0.41 Msi

Poisson's Ratio

0.48
0.39
0.35
0.38

Tensile Strength (Ultimate)

9 MPa1.3 ksi
50 MPa7.3 ksi
75 MPa10.9 ksi
65 MPa9.4 ksi

Elongation at Break

120%
22%
2.5%
6.5%

Compressive Strength

5 MPa0.65 ksi
70 MPa10.2 ksi
105 MPa15.2 ksi
80 MPa11.6 ksi

Compressive Modulus

0.01 GPa0 Msi
2.1 GPa0.3 Msi
5 GPa0.73 Msi
2.6 GPa0.38 Msi

Shear Strength

6 MPa0.87 ksi
40 MPa5.8 ksi

Hardness, Shore A

80 Shore A

Hardness, Shore D

30 Shore D
80 Shore D
85 Shore D
80 Shore D

Tear Strength

24 kN/m137 lbf/in

Compression Set (22 h, 70 °C)

4%

Yield Strength (0.2% offset)

44 MPa6.4 ksi
52 MPa7.5 ksi

Flexural Strength

68 MPa9.9 ksi
125 MPa18.1 ksi
87 MPa12.6 ksi

Flexural Modulus

1.9 GPa0.28 Msi
5 GPa0.73 Msi
2.2 GPa0.32 Msi

Izod Impact, Notched

38 J/m0.71 ft·lbf/in
17 J/m0.32 ft·lbf/in
25 J/m0.47 ft·lbf/in

Hardness, Rockwell R

103 HRR

Fracture Toughness (K_IC)

0.9 MPa·√m0.82 ksi·√in
0.9 MPa·√m0.82 ksi·√in

Hardness, Rockwell M

95 HRM
88 HRM

Physical

Density and transition temperatures.

Density

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

Glass Transition (Tg)

5°C41 °F
58°C136 °F
105°C221 °F
65°C149 °F

Water Absorption (24 h)

1.2%
0.8%
0.5%
0.6%

Refractive Index

1.5
1.51
1.52

Water Absorption (Saturation)

1.8%
1.6%

Light Transmission

88%

Thermal

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

Thermal Conductivity

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

Specific Heat Capacity

1,650 J/kg·K0.39 BTU/lb·°F
1,500 J/kg·K0.36 BTU/lb·°F
1,250 J/kg·K0.3 BTU/lb·°F
1,450 J/kg·K0.35 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

180 µm/m·K100 µin/in·°F
110 µm/m·K61.1 µin/in·°F
45 µm/m·K25 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Max Service Temperature (continuous)

65°C149 °F
50°C122 °F
100°C212 °F
55°C131 °F

Min Service Temperature

-20°C-4 °F
-20°C-4 °F
-30°C-22 °F
-30°C-22 °F

Heat Deflection Temp. @ 0.45 MPa

60°C140 °F
49°C120 °F
130°C266 °F
73°C163 °F

Limiting Oxygen Index

19%
19%
21%
19%

Max Service Temperature (short-term)

85°C185 °F
70°C158 °F
150°C302 °F
85°C185 °F

Heat Deflection Temp. @ 1.8 MPa

42°C108 °F
105°C221 °F
58°C136 °F

Vicat Softening Point (B50)

68°C154 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Dielectric Strength

14 kV/mm356 V/mil
15 kV/mm381 V/mil
15 kV/mm381 V/mil
15 kV/mm381 V/mil

Dielectric Constant (1 MHz)

4
3.4
3.6
3.2

Volume Resistivity

1×10¹³ Ω·cm
1×10¹⁴ Ω·cm
1×10¹⁴ Ω·cm
1×10¹⁴ Ω·cm

Dissipation Factor (1 MHz)

0.03
0.03
0.03

Surface Resistivity

1×10¹⁴ Ω
1×10¹⁴ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
55 / 100
80 / 100
65 / 100

UV / Weathering Resistance

25 / 100
30 / 100
25 / 100
25 / 100

Manufacturability

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

Machinability

15 / 100
55 / 100
40 / 100
45 / 100

Polishability

25 / 100
65 / 100
55 / 100
85 / 100

Mold Shrinkage

1.5%

Processing Melt Temperature (typ.)

30°C86 °F

Weldability

5 / 100
3 / 100
5 / 100

Formability (cold)

10 / 100
3 / 100
5 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

115 MJ/kg49,441 BTU/lb
115 MJ/kg49,441 BTU/lb
115 MJ/kg49,441 BTU/lb
110 MJ/kg47,292 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
6 kg CO₂/kg
6 kg CO₂/kg
5.5 kg CO₂/kg

Embodied Water

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

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

8 kN·m/kg
43 kN·m/kg
48 kN·m/kg
55 kN·m/kg

Specific Stiffness (E / density)

0 MN·m/kg
2.1 MN·m/kg
3.5 MN·m/kg
2.4 MN·m/kg

Thermal Diffusivity

0.1 mm²/s
0.1 mm²/s
0.2 mm²/s
0.1 mm²/s

Thermal Shock Resistance Index

1
0
0
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 10KFlexible ResinFormlabs Clear

Manufacturing and finishing

CapabilityFlexible ResinTough 2000Rigid 10KClear
Default conditionShore A 80ABS-likeGlass FilledStandard
Relative cost$$$ Premium$$ Standard$$$ Premium$$ 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.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Flexible Resin 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.