Fire-Retardant Resin vs Formlabs Tough 2000
Polymer · grade comparison
Fire-Retardant Resin and Tough 2000 are both polymer grades. Fire-Retardant Resin is the stronger of the two: tensile strength 60 MPa (8.7 ksi) against 50 MPa (7.25 ksi) for Tough 2000, about 20% more. In exchange, Tough 2000 is the more ductile: elongation 22% versus 4% for Fire-Retardant Resin, and Fire-Retardant Resin is harder (85 Shore D vs 80 Shore D). Tough 2000 is lighter (1.15 g/cm³ vs 1.32 g/cm³ for Fire-Retardant Resin) and Fire-Retardant Resin is stiffer (3.3 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, $$) than Fire-Retardant Resin (high, $$$$).
Fire-Retardant ResinChoose 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.
Fire-Retardant Resin vs Tough 2000: 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.
Fire-Retardant ResinTough 2000
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Yield Strength (0.2% offset)
Hardness, Rockwell R
Physical
Density and transition temperatures.
Density
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Refractive Index
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Limiting Oxygen Index
Max Service Temperature (short-term)
Same in both: Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Dielectric Strength
Dielectric Constant (1 MHz)
Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · 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
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Polishability
Weldability
Formability (cold)
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 115 MJ/kg49,441 BTU/lb · Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
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.
Manufacturing and finishing
| Capability | Fire-Retardant Resin | Tough 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 |
Fire-Retardant Resin vs Tough 2000 — frequently asked
Is Fire-Retardant Resin stronger than Tough 2000?
Yes. Fire-Retardant Resin has a typical tensile strength of 60 MPa (8.7 ksi) against 50 MPa (7.25 ksi) for Tough 2000 — about 20% more.
Which is cheaper, Fire-Retardant Resin or Tough 2000?
Tough 2000 is the lower-cost material: it sits in the standard tier ($$) while Fire-Retardant Resin is high ($$$$). 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, Fire-Retardant Resin or Tough 2000?
Tough 2000. Its machinability rates good (55/100) against fair (45/100) for Fire-Retardant Resin.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Fire-Retardant 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.