EVA Foam Sheet (Footwear Grade) C55 vs EVA Foam Sheet (Footwear Grade) HR
Polymer · EVA Foam Sheet (Footwear Grade) grade comparison
EVA Foam Sheet (Footwear Grade) C55 and EVA Foam Sheet (Footwear Grade) HR are two grades of the same polymer grade, EVA Foam Sheet (Footwear Grade): C55 (standard footwear midsole sheet) versus HR (hot rolled). The chemistry is identical, so every difference below comes from the condition. EVA Foam Sheet (Footwear Grade) HR is the stronger of the two: tensile strength 2 MPa (0.319 ksi) against 2 MPa (0.29 ksi) for EVA Foam Sheet (Footwear Grade) C55, about 10% more. EVA Foam Sheet (Footwear Grade) HR is the more ductile: elongation 300% versus 250% for EVA Foam Sheet (Footwear Grade) C55, and EVA Foam Sheet (Footwear Grade) C55 is harder (12 Shore D vs 9 Shore D). EVA Foam Sheet (Footwear Grade) HR is lighter (0.16 g/cm³ vs 0.18 g/cm³ for EVA Foam Sheet (Footwear Grade) C55) and EVA Foam Sheet (Footwear Grade) C55 is stiffer (0.01 GPa vs 0.01 GPa). On the shop floor, EVA Foam Sheet (Footwear Grade) C55 welds better (good vs fair).
EVA Foam Sheet (Footwear Grade) C55Choose it when it will be welded.
EVA Foam Sheet (Footwear Grade) HRChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
EVA Foam Sheet (Footwear Grade) C55 vs EVA Foam Sheet (Footwear Grade) HR: 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.
EVA Foam Sheet (Footwear Grade) C55EVA Foam Sheet (Footwear Grade) HR
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Hardness, Shore A
Hardness, Shore D
Tear Strength
Compression Set (22 h, 70 °C)
Same in both: Poisson's Ratio 0.3 · Compressive Modulus 0.01 GPa7.25×10⁻⁴ Msi · Shear Strength 0.55 MPa0.08 ksi
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 85°C185 °F · Glass Transition (Tg) -30°C-22 °F · Water Absorption (24 h) 0.3% · Water Absorption (Saturation) 1.5%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Limiting Oxygen Index
Same in both: Specific Heat Capacity 2,100 J/kg·K0.5 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 200 µm/m·K111 µin/in·°F · Min Service Temperature -40°C-40 °F · Max Service Temperature (short-term) 85°C185 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Constant (1 MHz) 1.3 · Volume Resistivity 1×10¹⁵ Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: UV / Weathering Resistance 45 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Mold Shrinkage
Melt Flow Rate
Same in both: Processing Melt Temperature (typ.) 120°C248 °F · Mold Temperature (typ.) 170°C338 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 82 MJ/kg35,254 BTU/lb · Embodied Carbon (primary production) 2.9 kg CO₂/kg · Embodied Water 160 L/kg19.2 gal/lb · Typical Recycled Content 10%
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.
EVA Foam Sheet (Footwear Grade) C55 vs EVA Foam Sheet (Footwear Grade) HR — frequently asked
Is EVA Foam Sheet (Footwear Grade) HR stronger than EVA Foam Sheet (Footwear Grade) C55?
Yes. EVA Foam Sheet (Footwear Grade) HR has a typical tensile strength of 2 MPa (0.319 ksi) against 2 MPa (0.29 ksi) for EVA Foam Sheet (Footwear Grade) C55 — about 10% more.
Which grade does FabDigit quote by default, C55 or HR?
C55 is the default EVA Foam Sheet (Footwear Grade) condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which welds better, EVA Foam Sheet (Footwear Grade) C55 or EVA Foam Sheet (Footwear Grade) HR?
EVA Foam Sheet (Footwear Grade) C55. Its weldability rates good (60/100) against fair (50/100) for EVA Foam Sheet (Footwear Grade) HR.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EVA Foam Sheet (Footwear Grade) C55 and EVA Foam Sheet (Footwear Grade) HR 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.