Comparison
Tough Abrasion-Resistant Thermoplastic Polyurethane (Polyester) vs ABS
A side-by-side comparison of Thermoplastic Polyurethane (TPU) - Polyester type and Acrylonitrile Butadiene Styrene.
Physical
Density
1.14 - 1.25 g/cm³
1.04 – 1.07 g/cm³
Water Absorption (24h)
0.5 - 1.5 %
0.20 – 0.45 %
Transparency
Opaque to Translucent
Opaque
Shrinkage
0.5 - 1.5 %
0.4 – 0.9 %
Specific Gravity
—
1.05
Surface Finish
—
Matte to glossy
Mechanical
Young's Modulus
0.02 - 0.2 GPa
1.8 – 2.5 GPa
Tensile Strength
20 - 60 MPa
40 – 50 MPa
Elongation at Break
400 - 700 %
10 – 50 %
Impact Strength (Izod)
High (10-100+ J/m, notched)
200 – 400 J/m
Flexural Strength
—
60 – 80 MPa
Hardness (Rockwell R)
—
100 – 115
Thermal
Glass Transition Temperature
-10 to 10 °C
105 °C
Melting Point
150 - 200 °C
Amorphous (no true Tm)
Continuous Service Temperature
-30 to 80 °C
70 – 90 °C
Heat Deflection Temperature
40 - 70 °C
85 – 100 °C
Thermal Conductivity
—
0.17 W/m·K
CTE
—
80 – 100 × 10⁻⁶ /K
Electrical
Dielectric Constant
5.0 - 6.0
2.7 – 3.2
Volume Resistivity
10^10 - 10^12 Ohm-cm
10¹⁶ Ω·cm
Dielectric Strength
15 - 25 kV/mm
15 – 20 kV/mm
Surface Resistivity
—
10¹⁵ Ω
Chemical resistance
Acids
Good
—
Bases
Good
Good
Solvents
Good resistance to oils, greases; swells in strong acids, ketones, and certain solvents
—
UV Resistance
Fair to Good (can yellow)
Poor (unless stabilized)
Acids (dilute)
—
Good
Alcohols
—
Good
Oils & Greases
—
Fair
Gasoline
—
Poor
Acetone
—
Attacks / dissolves
Weathering
—
Poor without stabilizers
Sustainability
Recyclability
Recyclable (thermoplastic)
Recyclable (mechanical)
Recycling Code
7 (Other)
7 (Other)
Carbon Footprint
Moderate
~3.1 kg CO₂e / kg
Bio-based Content
—
0 %