Comparison
Flexible Durable Copolymer Ether Ester (TPEE) vs PETG
A side-by-side comparison of Copolymer Ether Ester (TPEE) and Polyethylene Terephthalate Glycol.
Physical
Density
1.10 - 1.25 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.2 - 0.5 %
0.13 %
Transparency
Opaque to Translucent
Transparent
Shrinkage
0.8 - 1.8 %
0.2 – 0.5 %
Mechanical
Young's Modulus
0.01 - 0.1 GPa
2.1 GPa
Tensile Strength
20 - 55 MPa
50 MPa
Elongation at Break
450 - 700 %
120 %
Impact Strength (Izod)
Good (especially notched)
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
-50 to -30 °C
80 °C
Melting Point
140 - 170 °C
—
Continuous Service Temperature
-40 to 100 °C
65 °C
Heat Deflection Temperature
40 - 70 °C
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
4.0 - 5.0
3.3
Volume Resistivity
10^11 - 10^13 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
15 - 25 kV/mm
—
Chemical resistance
Acids
Good
Good
Bases
Good
Fair
Solvents
Good resistance to oils, fuels, hydraulic fluids; swells in strong solvents
—
UV Resistance
Good (with additives)
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Recyclable (thermoplastic)
Recyclable
Recycling Code
7 (Other)
1
Carbon Footprint
Moderate
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %