Comparison
PC/ABS Impact Modified vs PETG
A side-by-side comparison of Polycarbonate / Acrylonitrile Butadiene Styrene Blend, Impact Modified and Polyethylene Terephthalate Glycol.
Physical
Density
1.15-1.22 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.1-0.25 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
0.5-0.8 %
0.2 – 0.5 %
Mechanical
Young's Modulus
2.0-2.8 GPa
2.1 GPa
Tensile Strength
45-55 MPa
50 MPa
Elongation at Break
40-80 %
120 %
Impact Strength (Izod)
60-120 kJ/m
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
95-115 °C
80 °C
Melting Point
N/A (amorphous)
—
Continuous Service Temperature
70-90 °C
65 °C
Heat Deflection Temperature
85-105 °C (1.8 MPa)
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
2.8-3.2
3.3
Volume Resistivity
10^13-10^15 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
15-20 kV/mm
—
Chemical resistance
Acids
Fair
Good
Bases
Poor
Fair
Solvents
Poor
—
UV Resistance
Poor (requires stabilization)
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Recyclable
Recyclable
Recycling Code
7 (Other)
1
Carbon Footprint
Moderate
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %