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Balsa vs. DAP

Balsa belongs to the wood-based materials classification, while DAP belongs to the thermoset plastics. There are 14 material properties with values for both materials. Properties with values for just one material (9, 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 balsa and the bottom bar is DAP.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 7.0
150
Elastic (Young's, Tensile) Modulus, GPa 3.0
13
Elongation at Break, % 1.2
31
Tensile Strength: Ultimate (UTS), MPa 14
28

Thermal Properties

Specific Heat Capacity, J/kg-K 1700
1450
Thermal Conductivity, W/m-K 0.1
0.6
Thermal Expansion, µm/m-K 6.5
25

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 4.9
40

Otherwise Unclassified Properties

Density, g/cm3 0.13
1.7

Common Calculations

Stiffness to Weight: Axial, points 13
4.1
Strength to Weight: Axial, points 30
4.5
Strength to Weight: Bending, points 99
12
Thermal Diffusivity, mm2/s 0.45
0.24
Thermal Shock Resistance, points 51
6.3