Comparison
Carbon Fiber PA12 vs PETG
A side-by-side comparison of Polyamide 12, Carbon Fiber Reinforced and Polyethylene Terephthalate Glycol.
Physical
Density
1.10-1.20 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.3-0.5 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
0.2-0.4 %
0.2 – 0.5 %
Mechanical
Young's Modulus
12-20 GPa
2.1 GPa
Tensile Strength
100-130 MPa
50 MPa
Elongation at Break
5-10 %
120 %
Impact Strength (Izod)
10-20 kJ/m
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
40-50 °C
80 °C
Melting Point
175-185 °C
—
Continuous Service Temperature
100-120 °C
65 °C
Heat Deflection Temperature
140-180 °C (1.8 MPa)
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
N/A (conductive)
3.3
Volume Resistivity
10^2-10^6 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
Low (conductive)
—
Chemical resistance
Acids
Fair
Good
Bases
Good
Fair
Solvents
Good
—
UV Resistance
Fair
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Recyclable (complex)
Recyclable
Recycling Code
7 (Other)
1
Carbon Footprint
High
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %