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Soda-lime Glass vs. PPO

Soda-lime glass and PPO belong to fundamentally different material chemistries. Soda-lime glass is a ceramic material, while PPO is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is soda-lime glass and the bottom bar is PPO.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.4
1.1 to 1.4
Dielectric Strength (Breakdown Potential), kV/mm 13
19 to 21
Maximum Temperature: Mechanical, °C 300
100 to 110
Specific Heat Capacity, J/kg-K 720 to 800
1020 to 1250
Strength to Weight: Axial, points 4.6 to 20
16 to 27
Strength to Weight: Bending, points 11 to 28
33 to 42
Tensile Strength: Ultimate (UTS), MPa 41 to 180
63 to 140
Thermal Expansion, µm/m-K 8.8 to 9.0
25 to 60