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LDPE vs. ETFE

Both LDPE and ETFE are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is LDPE and the bottom bar is ETFE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.3
1.5
Tensile Strength: Ultimate (UTS), MPa 7.0
46

Thermal Properties

Maximum Temperature: Autoignition, °C 380
540
Maximum Temperature: Decomposition, °C 400
400
Melting Onset (Solidus), °C 110
260
Specific Heat Capacity, J/kg-K 2300
1000
Thermal Conductivity, W/m-K 0.36
0.24
Thermal Expansion, µm/m-K 220
95

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 2.3
2.1

Otherwise Unclassified Properties

Density, g/cm3 0.92
1.8

Common Calculations

Stiffness to Weight: Axial, points 0.18
0.48
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 2.1
7.3
Strength to Weight: Bending, points 8.8
16
Thermal Diffusivity, mm2/s 0.17
0.14
Thermal Shock Resistance, points 7.6
23