ABS-Like FR vs PP-Like
Polyurethane · grade comparison
ABS-Like FR and PP-Like are both polyurethane grades, both rigid pu. ABS-Like FR is the stronger of the two: yield strength 45 MPa (6.53 ksi) against 30 MPa (4.35 ksi) for PP-Like, about 50% more; tensile strength follows at 50 MPa (7.25 ksi) vs 36 MPa (5.22 ksi). In exchange, PP-Like is the more ductile: elongation 40% versus 9% for ABS-Like FR. ABS-Like FR is stiffer (2.3 GPa vs 1.3 GPa) and ABS-Like FR runs hotter in service (70°C vs 50°C continuous). On the shop floor, ABS-Like FR machines more easily (very good vs good) and PP-Like 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 sees heat.
PP-LikeChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
ABS-Like FR vs PP-Like: 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 Modulus
Bulk Modulus
Shear Strength
Fracture Toughness (K_IC)
Hardness, Rockwell M
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
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: Specific Heat Capacity 1,500 J/kg·K0.36 BTU/lb·°F
Electrical
Conductivity and insulation.
Dielectric Strength
Surface Resistivity
Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Constant (1 MHz) 3.6 · Dissipation Factor (1 MHz) 0.03 · Volume Resistivity 1×10¹⁴ Ω·cm · Comparative Tracking Index (CTI) 500 V
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)
Embodied Water
Same in both: Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0
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 | PP-Like |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both are offered for Urethane casting.
ABS-Like FR vs PP-Like — frequently asked
Is ABS-Like FR stronger than PP-Like?
Yes. ABS-Like FR has a typical yield strength of 45 MPa (6.53 ksi) against 30 MPa (4.35 ksi) for PP-Like — about 50% more. Tensile strength is 50 MPa (7.25 ksi) vs 36 MPa (5.22 ksi).
Which is cheaper, ABS-Like FR or PP-Like?
PP-Like 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 PP-Like?
ABS-Like FR. Its machinability rates very good (75/100) against good (55/100) for PP-Like; for welding the order is ABS-Like FR first (not recommended, 10/100) then PP-Like (not recommended, 5/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in ABS-Like FR and PP-Like 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.