ABS-Like FR vs General Purpose
Polyurethane · grade comparison
ABS-Like FR and General Purpose are both polyurethane grades, both rigid pu. ABS-Like FR is the stronger of the two: tensile strength 50 MPa (7.25 ksi) against 40 MPa (5.8 ksi) for General Purpose, about 25% more. In exchange, General Purpose is the more ductile: elongation 520% versus 9% for ABS-Like FR, and ABS-Like FR is harder (82 Shore D vs 30 Shore D). ABS-Like FR is stiffer (2.3 GPa vs 0.03 GPa) and General Purpose runs hotter in service (85°C vs 70°C continuous). On the shop floor, ABS-Like FR machines more easily (very good vs fair) and General Purpose sits in a lower cost tier (budget, $) than ABS-Like FR (standard, $$).
ABS-Like FRChoose it when strength drives the design, or when the part is machined in volume.
General PurposeChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
ABS-Like FR vs General Purpose: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polyurethane 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 polyurethane 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell R
Shear Strength
Hardness, Shore A
Tear Strength
Compression Set (22 h, 70 °C)
Physical
Density and transition temperatures.
Density
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Same in both: Thermal Conductivity 0.22 W/m·K0.13 BTU/hr·ft·°F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Comparative Tracking Index (CTI)
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
Weldability
Formability (cold)
Polishability
Mold Shrinkage
Mold Temperature (typ.)
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 300 L/kg35.9 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Shock Resistance Index
Same in both: Thermal Diffusivity 0.1 mm²/s
Strength versus weight
Yield strength against density for every polyurethane grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | ABS-Like FR | General Purpose |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both are offered for Urethane casting.
ABS-Like FR vs General Purpose — frequently asked
Is ABS-Like FR stronger than General Purpose?
Yes. ABS-Like FR has a typical tensile strength of 50 MPa (7.25 ksi) against 40 MPa (5.8 ksi) for General Purpose — about 25% more.
Which is cheaper, ABS-Like FR or General Purpose?
General Purpose is the lower-cost material: it sits in the budget tier ($) while ABS-Like FR is standard ($$). 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, ABS-Like FR or General Purpose?
ABS-Like FR. Its machinability rates very good (75/100) against fair (45/100) for General Purpose; for welding the order is General Purpose first (poor, 15/100) then ABS-Like FR (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in ABS-Like FR and General Purpose 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.