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PTFE vs. Spruce-pine-fir

PTFE belongs to the thermoplastics classification, while spruce-pine-fir belongs to the wood-based materials. There are 10 material properties with values for both materials. Properties with values for just one material (16, 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 PTFE and the bottom bar is spruce-pine-fir.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 6.9 to 24
50
Density, g/cm3 2.1 to 2.3
0.5
Elongation at Break, % 75 to 300
1.5
Limiting Oxygen Index (LOI), % 90
24
Maximum Temperature: Mechanical, °C 260 to 270
130
Strength to Weight: Axial, points 1.7 to 3.2
47
Strength to Weight: Bending, points 5.7 to 8.7
86
Tensile Strength: Ultimate (UTS), MPa 13 to 25
85
Thermal Conductivity, W/m-K 0.24 to 0.65
0.12
Thermal Expansion, µm/m-K 110 to 120
6.5