IXPE vs XPP
Polymer · grade comparison
IXPE and XPP are both polymer grades. XPP is the stronger of the two: tensile strength 0.65 MPa (0.0943 ksi) against 0.35 MPa (0.0508 ksi) for IXPE, about 86% more. In exchange, IXPE is the more ductile: elongation 150% versus 25% for XPP. IXPE is lighter (0.03 g/cm³ vs 0.06 g/cm³ for XPP) and XPP is stiffer (0.02 GPa vs 0 GPa). On the shop floor, IXPE machines more easily (excellent vs good) and IXPE sits in a lower cost tier (standard, $$) than XPP (premium, $$$).
IXPEChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
XPPChoose it when strength drives the design, or when the part sees heat.
IXPE vs XPP: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Compressive Modulus
Flexural Strength
Flexural Modulus
Shear Strength
Hardness, Shore A
Tear Strength
Shear Modulus
Same in both: Poisson's Ratio 0.15 · Compression Set (22 h, 70 °C) 12%
Physical
Density and transition temperatures.
Density
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (24 h)
Water Absorption (Saturation)
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)
Min Service Temperature
Vicat Softening Point (B50)
Limiting Oxygen Index
Max Service Temperature (short-term)
Electrical
Conductivity and insulation.
Electrical Resistivity
Dissipation Factor (1 MHz)
Volume Resistivity
Surface Resistivity
Same in both: Dielectric Constant (1 MHz) 1.1
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
Formability (cold)
Melt Flow Rate
Processing Melt Temperature (typ.)
Mold Temperature (typ.)
Same in both: Weldability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Thermal Diffusivity
Same in both: Specific Strength (UTS / density) 11 kN·m/kg · 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 | IXPE | XPP |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
IXPE vs XPP — frequently asked
Is XPP stronger than IXPE?
Yes. XPP has a typical tensile strength of 0.65 MPa (0.0943 ksi) against 0.35 MPa (0.0508 ksi) for IXPE — about 86% more.
Which is cheaper, IXPE or XPP?
IXPE is the lower-cost material: it sits in the standard tier ($$) while XPP is premium ($$$). 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, IXPE or XPP?
IXPE. Its machinability rates excellent (85/100) against good (60/100) for XPP.
Ready to make it?
Upload a CAD file and FabDigit prices the part in IXPE and XPP 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.