Comparison
rPA66 Black vs PEEK
A side-by-side comparison of Recycled Polyamide 66 Black and Polyether Ether Ketone.
Physical
Density
1.13-1.16 g/cm³
1.32 g/cm³
Water Absorption (24h)
1.5-2.5 %
0.15 %
Transparency
Opaque
Opaque (amber)
Shrinkage
1.0-1.8 %
1.1 – 1.4 %
Mechanical
Young's Modulus
2.5-3.5 GPa
3.6 GPa
Tensile Strength
60-85 MPa
100 MPa
Elongation at Break
30-80 %
50 %
Impact Strength (Izod)
30-60 J/m
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
50-70 °C
143 °C
Melting Point
255-265 °C
343 °C
Continuous Service Temperature
100-120 °C
260 °C
Heat Deflection Temperature
60-80 °C (0.45 MPa)
160 °C
Electrical
Dielectric Constant
3.5-4.0
3.2
Volume Resistivity
10^12-10^14 Ohm·cm
10¹⁶ Ω·cm
Dielectric Strength
15-20 kV/mm
—
Chemical resistance
Acids
Good resistance to weak acids
Excellent
Bases
Good resistance
Excellent
Solvents
Attacked by strong acids and certain organic solvents
Excellent
UV Resistance
Poor (requires UV stabilization)
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable (check local facilities)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Lower than virgin PA66
~30 kg CO₂e / kg