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Castable Wax Resin vs Formlabs Tough 2000

Polymer · grade comparison

Castable Wax Resin and Tough 2000 are both polymer grades. Tough 2000 is the stronger of the two: tensile strength 50 MPa (7.25 ksi) against 12 MPa (1.74 ksi) for Castable Wax Resin, about 4.2 times as much. Tough 2000 is the more ductile: elongation 22% versus 5% for Castable Wax Resin. Castable Wax Resin is lighter (1.1 g/cm³ vs 1.15 g/cm³ for Tough 2000) and Tough 2000 is stiffer (2.4 GPa vs 0.45 GPa). On the shop floor, Tough 2000 machines more easily (good vs poor) and Tough 2000 sits in a lower cost tier (standard, $$) than Castable Wax Resin (high, $$$$).

Castable Wax ResinChoose it when weight is the constraint.

Tough 2000Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Castable Wax Resin vs Tough 2000: properties

Castable Wax ResinTough 2000

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.45 GPa0.07 Msi
2.4 GPa0.35 Msi

Tensile Strength (Ultimate)

12 MPa1.7 ksi
50 MPa7.3 ksi

Elongation at Break

5%
22%

Compressive Strength

30 MPa4.4 ksi
70 MPa10.2 ksi

Flexural Strength

18 MPa2.6 ksi
68 MPa9.9 ksi

Flexural Modulus

0.5 GPa0.07 Msi
1.9 GPa0.28 Msi

Izod Impact, Notched

12 J/m0.22 ft·lbf/in
38 J/m0.71 ft·lbf/in

Hardness, Shore D

78 Shore D
80 Shore D

Poisson's Ratio

—
0.39

Yield Strength (0.2% offset)

—
44 MPa6.4 ksi

Compressive Modulus

—
2.1 GPa0.3 Msi

Hardness, Rockwell R

—
103 HRR

Physical

Density and transition temperatures.

Density

1.1 g/cm³0.04 lb/in³
1.15 g/cm³0.04 lb/in³

Melting Temperature (Tm)

70°C158 °F
—

Glass Transition (Tg)

55°C131 °F
58°C136 °F

Water Absorption (24 h)

0.4%
0.8%

Water Absorption (Saturation)

—
1.8%

Refractive Index

—
1.51

Thermal

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

Specific Heat Capacity

1,900 J/kg·K0.45 BTU/lb·°F
1,500 J/kg·K0.36 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

150 µm/m·K83.3 µin/in·°F
110 µm/m·K61.1 µin/in·°F

Max Service Temperature (continuous)

40°C104 °F
50°C122 °F

Heat Deflection Temp. @ 0.45 MPa

48°C118 °F
49°C120 °F

Heat Deflection Temp. @ 1.8 MPa

38°C100 °F
42°C108 °F

Limiting Oxygen Index

—
19%

Max Service Temperature (short-term)

—
70°C158 °F

Same in both: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

—
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Dielectric Strength

—
15 kV/mm381 V/mil

Dielectric Constant (1 MHz)

—
3.4

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).

UV / Weathering Resistance

20 / 100
30 / 100

Corrosion Resistance

—
55 / 100

Manufacturability

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

Machinability

25 / 100
55 / 100

Polishability

30 / 100
65 / 100

Weldability

—
5 / 100

Formability (cold)

—
10 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

—
115 MJ/kg49,441 BTU/lb

Embodied Carbon (primary production)

—
6 kg CO₂/kg

Embodied Water

—
260 L/kg31.2 gal/lb

Typical Recycled Content

—
0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

11 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

0.4 MN·m/kg
2.1 MN·m/kg

Same in both: Thermal Diffusivity 0.1 mm²/s · 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 2000

Manufacturing and finishing

CapabilityCastable Wax ResinTough 2000
Injection molding—Yes
3D printing—Yes
Default condition—ABS-like
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——
Chrome Plating (Plastic)—Yes
Conductive Coating—Yes
Dyeing (Nylon)—Yes
EMI Shielding Coating—Yes
Painting—Yes
Primer Coating—Yes
Soft Touch Coating—Yes
Spray Painting—Yes
Tinted Coating—Yes
UV Coating—Yes
Vacuum Metallization—Yes
Waterproof Coating—Yes

Castable Wax Resin vs Tough 2000 — frequently asked

Is Tough 2000 stronger than Castable Wax Resin?

Yes. Tough 2000 has a typical tensile strength of 50 MPa (7.25 ksi) against 12 MPa (1.74 ksi) for Castable Wax Resin — about 4.2 times as much.

Which is cheaper, Castable Wax Resin or Tough 2000?

Tough 2000 is the lower-cost material: it sits in the standard tier ($$) while Castable Wax Resin is high ($$$$). 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, Castable Wax Resin or Tough 2000?

Tough 2000. Its machinability rates good (55/100) against poor (25/100) for Castable Wax Resin.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Castable Wax 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.