Rebond Foam vs XPS 300
Polymer · grade comparison
Rebond Foam and XPS 300 are both polymer grades. XPS 300 is the stronger of the two: yield strength 0.3 MPa (0.0435 ksi) against 0.02 MPa (0.0022 ksi) for Rebond Foam, about 20 times as much; tensile strength follows at 0.45 MPa (0.0653 ksi) vs 0.15 MPa (0.0218 ksi). In exchange, Rebond Foam is the more ductile: elongation 60% versus 3% for XPS 300. XPS 300 is lighter (0.04 g/cm³ vs 0.08 g/cm³ for Rebond Foam) and XPS 300 is stiffer (0.02 GPa vs 8×10⁻⁴ GPa). On the shop floor, XPS 300 machines more easily (excellent vs very good).
Rebond FoamChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
XPS 300Choose it when strength drives the design, or when weight is the constraint.
Rebond Foam vs XPS 300: 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
Shear Strength
Hardness, Shore A
Tear Strength
Compression Set (22 h, 70 °C)
Flexural Strength
Flexural Modulus
Same in both: Poisson's Ratio 0.3
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.
Thermal Conductivity
Specific Heat Capacity
Max Service Temperature (continuous)
Min Service Temperature
Limiting Oxygen Index
Max Service Temperature (short-term)
Thermal Expansion (CTE, 20–100 °C)
Vicat Softening Point (B50)
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Dielectric Constant (1 MHz)
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)
Processing Melt Temperature (typ.)
Same in both: Weldability 15 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
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 | Rebond Foam | XPS 300 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Rebond Foam vs XPS 300 — frequently asked
Is XPS 300 stronger than Rebond Foam?
Yes. XPS 300 has a typical yield strength of 0.3 MPa (0.0435 ksi) against 0.02 MPa (0.0022 ksi) for Rebond Foam — about 20 times as much. Tensile strength is 0.45 MPa (0.0653 ksi) vs 0.15 MPa (0.0218 ksi).
Which is cheaper, Rebond Foam or XPS 300?
Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Rebond Foam or XPS 300?
XPS 300. Its machinability rates excellent (92/100) against very good (80/100) for Rebond Foam.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Rebond Foam and XPS 300 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.