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