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EVA Foam Sheet (Footwear Grade) HR vs EVA Foam Sheet (Footwear Grade) IP

Polymer · EVA Foam Sheet (Footwear Grade) grade comparison

EVA Foam Sheet (Footwear Grade) HR and EVA Foam Sheet (Footwear Grade) IP are two grades of the same polymer grade, EVA Foam Sheet (Footwear Grade): HR (hot rolled) versus IP (injection Phylon). The chemistry is identical, so every difference below comes from the condition. EVA Foam Sheet (Footwear Grade) IP is the stronger of the two: tensile strength 3 MPa (0.406 ksi) against 2 MPa (0.319 ksi) for EVA Foam Sheet (Footwear Grade) HR, about 27% more. In exchange, EVA Foam Sheet (Footwear Grade) HR is the more ductile: elongation 300% versus 210% for EVA Foam Sheet (Footwear Grade) IP, and EVA Foam Sheet (Footwear Grade) IP is harder (17 Shore D vs 9 Shore D). EVA Foam Sheet (Footwear Grade) HR is lighter (0.16 g/cm³ vs 0.25 g/cm³ for EVA Foam Sheet (Footwear Grade) IP) and EVA Foam Sheet (Footwear Grade) IP is stiffer (0.02 GPa vs 0.01 GPa).

EVA Foam Sheet (Footwear Grade) HRChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

EVA Foam Sheet (Footwear Grade) IPChoose it when strength drives the design.

EVA Foam Sheet (Footwear Grade) HR vs EVA Foam Sheet (Footwear Grade) IP: properties

EVA Foam Sheet (Footwear Grade) HREVA Foam Sheet (Footwear Grade) IP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.01 GPa8.7×10⁻⁴ Msi
0.02 GPa0 Msi

Tensile Strength (Ultimate)

2 MPa0.32 ksi
3 MPa0.41 ksi

Elongation at Break

300%
210%

Compressive Strength

0.24 MPa0.03 ksi
0.5 MPa0.07 ksi

Shear Strength

0.55 MPa0.08 ksi
0.9 MPa0.13 ksi

Hardness, Shore A

38 Shore A
48 Shore A

Hardness, Shore D

9 Shore D
17 Shore D

Tear Strength

6 kN/m31.4 lbf/in
8 kN/m42.8 lbf/in

Compression Set (22 h, 70 °C)

18%
28%

Same in both: Poisson's Ratio 0.3 · Compressive Modulus 0.01 GPa7.25×10⁻⁴ Msi

Physical

Density and transition temperatures.

Density

0.16 g/cm³0.01 lb/in³
0.25 g/cm³0.01 lb/in³

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

0.04 W/m·K0.02 BTU/hr·ft·°F
0.06 W/m·K0.03 BTU/hr·ft·°F

Max Service Temperature (continuous)

62°C144 °F
66°C151 °F

Limiting Oxygen Index

18%
19%

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

85 / 100
90 / 100

Same in both: UV / Weathering Resistance 45 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

88 / 100
80 / 100

Weldability

50 / 100
55 / 100

Formability (cold)

92 / 100
75 / 100

Mold Shrinkage

3.6%
2%

Melt Flow Rate

2 g/10 min
6 g/10 min

Processing Melt Temperature (typ.)

120°C248 °F
135°C275 °F

Same in both: 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.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scale

EVA Foam Sheet (Footwear Grade) HR vs EVA Foam Sheet (Footwear Grade) IP — frequently asked

Is EVA Foam Sheet (Footwear Grade) IP stronger than EVA Foam Sheet (Footwear Grade) HR?

Yes. EVA Foam Sheet (Footwear Grade) IP has a typical tensile strength of 3 MPa (0.406 ksi) against 2 MPa (0.319 ksi) for EVA Foam Sheet (Footwear Grade) HR — about 27% more.

Which grade does FabDigit quote by default, HR or IP?

C55 is the default EVA Foam Sheet (Footwear Grade) condition in the FabDigit quote flow (neither HR nor IP). 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 is easier to machine, EVA Foam Sheet (Footwear Grade) HR or EVA Foam Sheet (Footwear Grade) IP?

EVA Foam Sheet (Footwear Grade) HR. Its machinability rates excellent (88/100) against very good (80/100) for EVA Foam Sheet (Footwear Grade) IP; for welding the order is EVA Foam Sheet (Footwear Grade) IP first (good, 55/100) then EVA Foam Sheet (Footwear Grade) HR (fair, 50/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in EVA Foam Sheet (Footwear Grade) HR and EVA Foam Sheet (Footwear Grade) IP 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.