Comparison
Cost-Effective Flexible Thermoplastic Polyolefin vs PETG
A side-by-side comparison of Thermoplastic Polyolefin (TPO) and Polyethylene Terephthalate Glycol.
Physical
Density
0.86 - 0.95 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.1 - 0.5 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
1.0 - 2.0 %
0.2 – 0.5 %
Mechanical
Young's Modulus
0.01 - 0.05 GPa
2.1 GPa
Tensile Strength
5 - 15 MPa
50 MPa
Elongation at Break
300 - 700 %
120 %
Impact Strength (Izod)
Good (especially at low temps)
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
-40 to -10 °C
80 °C
Melting Point
140 - 170 °C
—
Continuous Service Temperature
-40 to 100 °C
65 °C
Heat Deflection Temperature
20 - 50 °C
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
2.5 - 3.5
3.3
Volume Resistivity
10^14 - 10^16 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
20 - 30 kV/mm
—
Chemical resistance
Acids
Good
Good
Bases
Good
Fair
Solvents
Good resistance to polar solvents, acids, and bases; Poor resistance to hydrocarbons
—
UV Resistance
Good (with additives)
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Recyclable (thermoplastic)
Recyclable
Recycling Code
7 (Other) or 5 (PP component)
1
Carbon Footprint
Moderate
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %